我国中等职业学校90%学生享受免学费政策
滚珠丝杠(选型手册)
《上海集邮》2010年索引
小 本０ １ ０ １ ｌ １ ， ２ ９，６ ９，０ ９ 普Ｔ全年 票生 肖全张０ １ ， ７ ９，１ ９， ３ ９ ０ ｌ １ １ 小型 （ 、 全
开 ）张 ０ ｌ ，５ ９ ０ １ ｌ９ Ｏ １ ，９ ９
周 今 觉 ０ ０ ， 笑 炉０ ３ １２ 钟 １２ 屠 松 鉴 ０ ０ ， 君 武 （ 晓 文 ）０ ０ １６ 华 宋 ９２
１３ ， （ 海 山 ） １ ３ ， 告 ００ ０１ 朱 ０ ５讣 ８５
谷 丙 夫 （ 世 光 ）０ ３ 谭 ８０ 吴 玉 麟 ０ ３ ， 斌 ０ ０ ， ５５ ９０柯 ４ ５０ ０
拍卖
嘉 德 ０ ４ ， １ ３北 京诚 轩 ０４ ，１２ ３４ ｌ４ ， ４ ３ １４
上 海 泓盛 ０ ４ ， １ ４ ４ ４ １４
１０ ０ ０ ， 匕 世 攫 会 Ｑ ２ 中银 ０ 年 ４ ７ 捶 ，
０ ０ ， 赏 （ 岢 ）０ ３ ４８评 余 ７２
—
限省新 １４ ，纽约倒０ ５ ２４ ４
苏联 十 月革 命 错 票 ０４ ３５
２广济辚 ８
发行 ０ ０ ５８
—
２ 马 连 良 （ 有 才 ）０ Ｏ 发 行 ９ 赖 ｌ ９，
读 者 园 地
强 ｛ 甄 ＨＡ ｔ 肘 ｐＨ ｌ ｛Ａ Ｈ Ｙ
上海集邮》２１年索引 ｏ０
世 博 览胜 【 下划线表示］
廿 博 邮 彩 朕 橐 １ ｆ １ ０ 硐Ｉ 敦 十 臀 １２． １ ２． 专
钟 笑 炉 基金 会
年 度 工 作 １ ０ １５
０ ３，７１０３，１３ｌ０ 虹 口 ３ ０ ０ ３ ， ９ １ １ ０ ， ２ ２，
华 ）ｏ ３ — １４ ， 初 拍 卖广 告 １４ ６５ １５民 ２０
锟斤拷血压指锟较硷拷锟叫癸拷专锟揭癸拷识-药锟斤拷锟斤拷锟狡诧拷锟斤拷
NICE指南---药物治疗建议
如开始治疗是CCB或噻嗪类利尿剂，须加第二种 药则加ACEI（不耐受者，加ARB）。 如开始用的ACEI（或ARB）则加CCB或噻嗪类 利尿剂。 如须3种药，则联合ACEI（或ARB），CCB或噻 嗪类利尿剂。 如须第四种药，应考虑以下之一： 较大剂量的噻嗪类利尿剂，或β-阻滞剂。
NICE指南---药物治疗建议
β-阻滞剂不是最好的高血压开始治疗，但是 在较年轻的人也可以考虑，特别是那些对 ACEI和ARB不耐受或禁忌者，或可能生孩 子的妇女，以及交感神经增强的人。 如果开始用β-阻滞剂治疗而须第二种药， 则加CCB而不是噻嗪类利尿剂以减少发生糖 尿病的危险。
β-受体阻滞剂：争议与思考
合理的价格是保证患者依从性的重要因素之一。 在我国，对需要自费用药的患者，药价是治疗过 程中需要特别考虑的问题。 注意药物的副作用：对不同的患者药物的副作用 各不相同，应根据药物治疗反应及时调整药物的 种类和剂量。
假性难治性高血压
单纯诊室高血压 -- 白大衣效应
血压测量有问题
测量前没有让患者静坐休息 ◆患者上臂粗但未使用较大的袖带
ACCOMPLISH
解决问题？
Avoiding Cardiovasculer Events Through Combination Therapy in Patients Living With Systolic Hypertension Trial
收缩期高血压患者联合治疗避免心血管事件
实验方案：高危高血压患者11506例，随机分为：
《高血压指南及中国专家共识 ----药物治疗部分》
解读及新动向
遵义医学院附属医院心内科
北师大版-小学数学四年级下全套单元检测卷及答案
北师大版小学数学第一单元教学检测卷班级姓名学号等第一、填空：（1）先用小数表示下面图中的阴影部分，再进行计算。
( ) + ( ) = ( )（2）15.037是( )位小数，3在( )位，表示( )个( )；7在( )位，表示( )个( )。
（3）3.006读作（）二千零六点零三写作（） 0.708读作（）四百点零零一写作（）（4）由5个十分之一，7个千分之一组成的一个小数是（）。
（5） 27米=（）千米 5厘米=（）米600千克=（）吨 4元8分=（）元（6）在○里填上“＞”“＜”或“＝”8.97 ○ 8.972 4.08 ○ 4.25129.6 ○ 12.96 5米3分米○ 5.3米（7）把下列各数从小到大排列起来。
1.39 1.391 1.399 1.389 1.4（）（8）在里填上合适的小数。
（9）按要求写小数：（a）在0.8和1.0之间的小数: ( )、( )、( )。
（b）与7.2相等的小数：（）、（）、（）。
（10）在84.14中，左面的4比右面的4多（）。
二、选择：（把正确答案的字母填写在括号里）（1） 1.8是（）个百分之一。
A. 1.8B. 18C. 180D. 1800（2）下面各数去掉“0”后，大小不变的是（）。
A. 5.04B. 60.60C. 20.02D. 350（3）大于0.31小于0.39的两位小数有（）。
A. 10个B. 7个C.无数个D. 100个（4）把2431000＋34100改写成小数加法是（）。
A．2.43＋3.4 B．0.243＋0.34 C．2.43＋3.4三、判断：（正确的在括号里画“√”，错的在括号里画“×”）（1）在小数点的后面添上两个0，小数的大小不变。
………………（）（2）小数的最高位是十分位。
………………………………………（）（3）0.2和0.4之间只有一个小数0.3。
……………………………（）（4）0.24里有24个0.01。
立式锟磨机技术要求
立式辊磨机技术要求一、立式辊磨机介绍：1、立磨又称立式磨、辊磨、立式辊磨。
2、它能够大量利用来自预热器的余热废气，能高效、综合地完成物料的中碎、粉磨、烘干、选粉和气力输送过程，集多功能于一体。
3、由于它是利用料床原理进行粉磨，避免了金属间的撞击与磨损，金属磨损量小、噪音低，而球磨机是单颗粒粉碎，由于单颗粒粉碎的偶然性，使大量的能量消耗在研磨体之间及研磨体与磨机衬板之间的碰撞与磨损上，因而其效率很低。
4、又因为它是风扫式粉磨，带有内部选粉功能，避免了过粉磨现象，因此减少了无用功的消耗，粉磨效率高，与球磨系统相比，粉磨电耗仅为后者的50%～60%。
5、还具有工艺流程简单、单机产量大、入料粒度大、烘干能力强、密封性能好、负压操作无扬尘、对成品质量控制快捷、更换产品灵活、易实现智能化、自动化控制等优点。
6、立磨的技术含量高于球磨机，它是集机（含液压）、电、仪于一体的，功能综合性强的设备，无论是操作或维修的技术要求都超过球磨机。
7、料层厚度一般应控制在80-120mm为好，磨出口温度控制在80～90℃左右。
8、立磨组成：传动装置、磨盘、磨辊、喷口环、液压拉伸装置、选粉装置、润滑系统、机壳等。
9、立式辊磨机工作原理：电动机通过减速机带动磨盘转动，磨辊在磨盘的磨擦作用下围绕磨辊轴自转，物料通过锁风喂料装置从进料口落入磨盘中央，受到离心力的作用向磨盘边移动。
经过粉磨区时，被啮入磨辊与磨盘间碾压粉碎。
磨辊相对物料及磨盘的粉碎压力是由液压拉伸装置提供（适宜的粉碎压力可根据不同物料的硬度进行调节）。
物料在粉碎过程中，同时受到磨辊的压力和磨盘与磨辊间相对运动产生的剪切力作用。
物料被挤压后，在磨盘轨道上形成料床（料床厚度由磨盘挡料环高度决定），而料床物料颗粒之间的相互挤压和磨擦又引起棱角和边缘的剥落，起到了进一步粉碎的作用。
粉磨后的物料继续向盘边运动，直至溢出盘外。
磨盘周边设有喷口环，热气流由喷口环自下而上高速带起溢出的物料上升，其中大颗粒最先降落到磨盘上，较小颗粒在上升气流作用下带入选粉装置进行粗细分级，粗粉重新返回到磨盘再粉磨，符合细度要求的细粉作为成品，随气流带向机壳上部出口进入收尘器被收集下来。
剑桥商务英语中级-86
鍓戞ˉ鍟嗗姟鑻辫涓骇-86(鎬诲垎锛?00.00锛屽仛棰樻椂闂达細90鍒嗛挓)涓€銆?b>READING(鎬婚鏁帮細0锛屽垎鏁帮細0.00)浜屻€?b>PART ONE(鎬婚鏁帮細1锛屽垎鏁帮細7.00)• A. Walger, the bus maker, has entered into a joint venture with IMCO Bus Corporation to participate in coachbuilding operations in Mexico. The two companies have justannounced the 锛?0 million acquisition of Mexican Coachworks, the largest bus andcoach builder in Mexico, with 2,400 employees and three factories. Walger retains a 60% interest in the coachbuilding venture. Analysts have expressed surprise, giventhe current exchange rate.• B. Jetline Airports has said that it spent 锟?.1 million on its failed attempt to dispose of its duty-free retail division. The chief executive said the company'ssix-month search for a buyer ran up heavy consultancy expenses which left half-year pre-tax profits at 锟?.5 million. It also emerged that the Director of Financereceived a 锟?00,000 settlement when he left the company.• C. GRD, the manufacturing giant, plans to cut 1,500 jobs at its Portland factory over the next five years after union refusal to increase productivity. A companyrepresentative said that although they have invested more than 锛?2 million in thenew plant and improved technology, the trade unions are still unwilling to increase output. As a result, GRD have been forced to downsize the Portland plant.• D. Maybrooke, the Scottish department store, reported a fall in trading profits in the first half of the year from 锟?45,000 to 锟?62,000, on sales which were down two per cent. They blame the disappointing first half on the strength of the pound,which hit the company's tourist business, as well as an increase in traffic andparking problems in the city centre, and the growth of out-of-town shopping centres.锛堝垎鏁帮細7.00锛?/div>(1).A strong currency has had a negative effect on the company.锛堝垎鏁帮細1.00锛?/div>濉┖椤?:__________________ 锛堟纭瓟妗堬細D锛?/div>瑙ｆ瀽锛?/div>(2).The workforce has made it difficult for this company to become more efficient.锛堝垎鏁帮細1.00锛?/div>濉┖椤?:__________________ 锛堟纭瓟妗堬細C锛?/div>瑙ｆ瀽锛?/div>(3).The use of specialists led to very high costs.锛堝垎鏁帮細1.00锛?/div>濉┖椤?:__________________ 锛堟纭瓟妗堬細B锛?/div>瑙ｆ瀽锛?/div>(4).Increased competition has contributed to this company's difficulties.锛堝垎鏁帮細1.00锛?/div>濉┖椤?:__________________ 锛堟纭瓟妗堬細D锛?/div>瑙ｆ瀽锛?/div>(5).This company has reached an agreement on a new project.锛堝垎鏁帮細1.00锛?/div>濉┖椤?:__________________ 锛堟纭瓟妗堬細A锛?/div>瑙ｆ瀽锛?/div>(6).Part of this company was up for sale.锛堝垎鏁帮細1.00锛?/div>濉┖椤?:__________________ 锛堟纭瓟妗堬細B锛?/div>瑙ｆ瀽锛?/div>(7).This company has expanded its manufacturing base.锛堝垎鏁帮細1.00锛?/div>濉┖椤?:__________________ 锛堟纭瓟妗堬細A锛?/div>瑙ｆ瀽锛?/div>涓夈€?b>PART TWO(鎬婚鏁帮細1锛屽垎鏁帮細5.00)GETTING THE BEST FROM YOUR STAFFEd Smith, a senior manager for Trustco Ltd in Worcester, used to work a minimum of 70 hours a week. He travelled regularly between the UK and USA and began to feel he had become almost a stranger to his wife and his two young sons. Realising that he was putting himself under too much stress, he decided to try to change his working hours. This idea worked.These days, he still goes to work very early but he also leaves early. He now sees his children before they go to bed and then does about an hour's work by computer from home in the evening, keeping in touch with American colleagues. (8) The key to Ed Smith's changing his hours was persuading his employer that he and other staff were more productive when they worked the hours that suited them. This is easier said than done, of course. (9) Many of them are slow to realise the benefits of letting employees work fewer or more flexible hours.A recent survey of five thousand senior managers found that nearly half of them always worked more than their contract hours, while many worked evenings and weekends. A majority thought that this not only had a negative effect on their family relationships and their health, but also reduced their productivity. (10) It seems that it is job satisfaction that is the deciding factor when it comes to employee productivity.However, the good news is that more employers are now starting to realise that they are only going to get higher output from their staff if those staff are happy and want to be at work.(11) His company have brought in changes partly for competitive reasons. The research and development part of the business employs highly trained scientists, who are expensive to replace. (12) The employees seem to be very happy with the new arrangements and, as a result, productivity rates have gradually but consistently increased and staff turnover rates have fallen dramatically. According to Ed Smith, many companies would benefit from a similar scheme, and everyone, from directors to employees' families, would have something to gain.• A. Ed Smith's new working hours are just one example of the attempt to alter corporate culture.• B. This adds to the increasing evidence that long hours are not necessarily useful hours.• C. They are often willing to accept that happy employees produce more.• D. He admits to feeling much happier, and believes he has established a balance between work and home life.• E. It can be difficult to persuade organisations that a change of this type is in their interest, too.• F. To keep them happy, 'trust time' has been introduced, where the company trusts employees to do what is required, in whatever time it takes.•G. Realising that he was putting himself under too much stress, he decided to try to change his working hours.锛堝垎鏁帮細5.00锛?/div>濉┖椤?:__________________ 锛堟纭瓟妗堬細D锛?/div>瑙ｆ瀽锛?/div>濉┖椤?:__________________ 锛堟纭瓟妗堬細E锛?/div>瑙ｆ瀽锛?/div>濉┖椤?:__________________ 锛堟纭瓟妗堬細B锛?/div>瑙ｆ瀽锛?/div>濉┖椤?:__________________ 锛堟纭瓟妗堬細A锛?/div>瑙ｆ瀽锛?/div>濉┖椤?:__________________ 锛堟纭瓟妗堬細F锛?/div>瑙ｆ瀽锛?/div>鍥涖€?b>PART THREE(鎬婚鏁帮細1锛屽垎鏁帮細6.00)PROBLEMS FACING POTENTIAL EXPORTERSMany firms fail because when they begin exporting they have not researched the target markets or developed an international marketing plan. To be successful, a firm must clearly define goals, objectives and potential problems. Secondly, it must develop a definitive plan to accomplish its objective, regardless of the problems involved. Unless the firm is fortunate enough to possess a staff with considerable expertise, it may not be able to take this crucial first step without qualified outside guidance.Often top management is not committed enough to overcome the initial difficulties and financial requirements of exporting. It can often take more time and effort to establish a firm in a foreign market than in the domestic one. Although the early delays and costs involved in exporting may seem difficult to justify when compared to established domestic trade, the exporter should take a more objective view of this process and carefully monitor international marketing efforts through these early difficulties. If a good foundation is laid for export business, the benefits derived should eventually outweigh the investment. Another problem area is in the selection of the foreign distributor. The complications involved in overseas communications and transportation require international distributors to act with greater independence than their domestic counterparts. Also, since a new exporter's trademarks and reputation are usually unknown in the foreign market, foreign customers may buy on the strength of the distributing agent's reputation. A firm should therefore conduct a thorough evaluation of the distributor's facilities, the personnel handling its account, and the management methods employed.Another common difficulty for the new exporter is the neglect of the export market once the domestic one booms: too many companies only concentrate on exporting when there is a recession. Others may refuse to modify products to meet the regulations or cultural preferences of other countries. Local safety regulations cannot be ignored by exporters. If necessary modifications are not made at the factory, the distributor must make them, usually at a greater cost and probably not as satisfactorily. It should also be noted that the resulting smaller profit margin makes the account less attractive.If exporters expect distributing agents to actively promote their accounts, they must be trained, and their performance continually monitored. This requires a company marketing executive to be located permanently in the distributor's geographical region. It is therefore advisable for new exporters to concentrate their efforts in a few geographical areas until there is sufficient business to support a company representative. Thedistributor should also be treated on an equal basis with domestic counterparts. For example, special discount offers, sales incentive programmes and special credit terms shouldbe available.Considering a joint-venture or licensing agreement is another option for new exporters. However, many companies still dismiss international marketing as unviable. There are a number of reasons for this. There may be import restrictions in the target market, the company may lack sufficient financial resources, or its product line may be too limited. Yet, many products that can compete on a national basis can be successful in the majority of world markets. In general, all that is needed for success is flexibility in using the proper combinations of marketing techniques.锛堝垎鏁帮細6.00锛?/div>(1).In the first paragraph, the writer suggests that firms thinking about exporting should锛堝垎鏁帮細1.00锛?/div>A.get professional advice. 鈭?/span>B.study international marketing.C.identify the most profitable markets.D.have different objectives to other exporters.瑙ｆ瀽锛?/div>(2).The writer believes that if sufficient preparation is undertaken锛堝垎鏁帮細1.00锛?/div>A.initial difficulties can be easily avoided.B.the costs can be recovered quite quickly.C.management will become more committed.D.the exporter will be successful in the long term. 鈭?/span>瑙ｆ瀽锛?/div>(3).An exporter should choose a distributor who锛堝垎鏁帮細1.00锛?/div>A.has experienced personnel.B.has good communication skills.C.is welt-established in the target market. 鈭?/span>D.is not financially dependent on the import business.瑙ｆ瀽锛?/div>(4).New exporters often make the mistake of ignoring the export market when锛堝垎鏁帮細1.00锛?/div>A.distribution costs are too high.B.their product is selling well at home. 鈭?/span>C.there is a global economic recession.D.distributors cannot make safety modifications.瑙ｆ瀽锛?/div>(5).For a distributor to be successful, the exporter must锛堝垎鏁帮細1.00锛?/div>A.focus on one particular region.B.finance local advertising campaigns.C.give the same support as to domestic agents. 鈭?/span>D.make sure there are sufficient marketing staff locally.瑙ｆ瀽锛?/div>(6).In the last paragraph, the writer states that some companies are reluctant to export because锛堝垎鏁帮細1.00锛?/div>A.there is little demand for their products.B.the importation of certain goods is controlled. 鈭?/span>C.they do not have good marketing techniques.D.they are not able to compete with local businesses.浜斻€?b>PART FOUR(鎬婚鏁帮細1锛屽垎鏁帮細15.00)MULTICOPY PRINTINGMartin Charlesworth pays a visit to discover thesecret of Success at a busy printing firm.From designing and printing corporate brochures and business cards to photocopying students' essays it's all in a day's work for Multicopy Printing. The family-run firm is one of the most successful printing, copyshop and design offices in the region. Although it is a (19) small company, it thinks big. The company has made a considerable (20) in high-tech machinery to (21) up in this rapidly changing industry.The company's success has recently enabled it to modernise and (22) its premises.Multicopy's Managing Director, Colin Marsh, says, 'It was very (23) before. We may get up to two tonnes of paper delivered a day and we were running out of space to (24) it. Now, we're the only business in this area (25) a print service from start to finish all under one roof.A vast amount of work can be (26) in a very short space of time.'The firm was (27) up 22 years ago by Colin's father, who was the area manager for a national (28) of printers before deciding to go into business on his own. In those days, it was mostly small printing (29) such as letterheads and photocopying. The business grew rapidlyin the mid-1980s with the (30) of new technology. Nowadays the core photocopying business is high-volume, sometimes up to 300,000 copies for one job, and it often needs to meet (31) deadlines for commercial outlets. But despite Multicopy's recent success, it has not forgotten its (32) and part of the everyday (33) still consists of doing small numbers of photocopies for members of the general public.锛堝垎鏁帮細15.00锛?/div>A.relatively 鈭?/span>B.roughlyC.whollyD.nearly瑙ｆ瀽锛?/div>A.investment 鈭?/span>B.expenseC.costD.payment瑙ｆ瀽锛?/div>A.goB.getC.keep 鈭?/span>D.bring瑙ｆ瀽锛?/div>A.boostB.exceedC.continueD.expand 鈭?/span>瑙ｆ瀽锛?/div>A.closedB.crowded 鈭?/span>C.occupiedD.filledA.reserveB.collectC.store 鈭?/span>D.fetch瑙ｆ瀽锛?/div>A.lendingB.providing 鈭?/span>C.stockingD.holding瑙ｆ瀽锛?/div>A.settledB.builtC.constructedpleted 鈭?/span>瑙ｆ瀽锛?/div>A.takenB.putC.madeD.set 鈭?/span>瑙ｆ瀽锛?/div>A.branchB.chain 鈭?/span>C.systemD.series瑙ｆ瀽锛?/div>A.dutiesB.actionsC.jobs 鈭?/span>bours瑙ｆ瀽锛?/div>A.eventB.openingC.occasionD.introduction 鈭?/span> 瑙ｆ瀽锛?/div>A.narrowB.sharpC.tight 鈭?/span>D.steep瑙ｆ瀽锛?/div>A.origins 鈭?/span>B.reasonsC.basesD.causes瑙ｆ瀽锛?/div>A.dutyB.routine 鈭?/span>C.methodD.effort瑙ｆ瀽锛?/div>鍏€?b>PART FIVE(鎬婚鏁帮細1锛屽垎鏁帮細12.00)FOOD TECHNOLOGISTS REQUIREDFor all the diversity of the people who work at WP Foods, there is onesingle thing that unites to us all: a passion to create something special34. and a determination to be the best in whatever we do. We've been35. producing high-quality foods for over than a century, and we travel to the36. ends of all the earth to create the next generation of foods and drinks so37. as to give delight our millions of customers. And thanks to our dedicated38. staff, our much-loved brands just keep getting on better. We are now39. seeking to appoint as innovators to manage a number of new teams in40. the organisation. Applicants must have qualified a research degree in41. Food Technology plus at least four years' industrial experience. We42. need people with a high level of their team spirit who show themselves43. be capable of explaining technical concepts to non-technical people.44. Those appointed will spend significant amounts of time in other countries45. for seeking new ingredients, but will also have a major influence on change throughout the business.锛堝垎鏁帮細12.00锛?/div>濉┖椤?:__________________ 锛堟纭瓟妗堬細CORRECT锛?/div>瑙ｆ瀽锛?/div>濉┖椤?:__________________ 锛堟纭瓟妗堬細than锛?/div>瑙ｆ瀽锛?/div>濉┖椤?:__________________ 锛堟纭瓟妗堬細all锛?/div>瑙ｆ瀽锛?/div>濉┖椤?:__________________ 锛堟纭瓟妗堬細give锛?/div>瑙ｆ瀽锛?/div>濉┖椤?:__________________ 锛堟纭瓟妗堬細on锛?/div>瑙ｆ瀽锛?/div>濉┖椤?:__________________ 锛堟纭瓟妗堬細as锛?/div>瑙ｆ瀽锛?/div>濉┖椤?:__________________ 锛堟纭瓟妗堬細qualified锛?/div>瑙ｆ瀽锛?/div>濉┖椤?:__________________ 锛堟纭瓟妗堬細CORRECT锛?/div>瑙ｆ瀽锛?/div>濉┖椤?:__________________ 锛堟纭瓟妗堬細their锛?/div>瑙ｆ瀽锛?/div>濉┖椤?:__________________ 锛堟纭瓟妗堬細be锛?/div>瑙ｆ瀽锛?/div>濉┖椤?:__________________ 锛堟纭瓟妗堬細CORRECT锛?/div>瑙ｆ瀽锛?/div>濉┖椤?:__________________ 锛堟纭瓟妗堬細for锛?/div>瑙ｆ瀽锛?/div>涓冦€?b>WRI TING(鎬婚鏁帮細2锛屽垎鏁帮細10.00)1.PART ONE路You are the training manager of a company which has won a large export order. You have been asked to organise foreign language training for some of your staff.路Write a memo to staff:路explaining why the courses are necessary路saying which members of staff should attend路announcing when the courses will start.路Write 40-50 words on a separate sheet.MemoTo:From:Date:Subject:锛堝垎鏁帮細5.00锛?/div>__________________________________________________________________________________________ 姝ｇ‘绛旀锛?To: All staffFrom: The Training ManagerDate: I March, 2002Subject: A Foreign Language Training CourseI was asked to organise a foreign language training course because of the large export order we received recently. It will start on 15th March. Those who will deal with orders should attend the course.)瑙ｆ瀽锛?/div>2.PART TWO路Your company exports to a number of countries around the world and is looking for a new agent for international freight. The Export Sales Manager has asked you to write a proposal saying which agent you recommend.路Read the two advertisements below, on which you have already made some notes.路Then, using all your handwritten notes, write your proposal for the Export Sales Manager. 路Write 120-140 words on a separate sheet.锛堝垎鏁帮細5.00锛?/div>__________________________________________________________________________________________ 姝ｇ‘绛旀锛?Date: 2 March 2002Report on Globelink and FTD Shipping AgentsIntroductionThe purpose of this report is to present and compare the services of Globelink and FTD as possible new agents for international freight.FindingsGlobelink has 25 years' experience in sea freight worldwide. They offer air freight as well, and we may need that for urgent orders. This company will complete all customs forms and provide all documentations.FTD operates mainly in Europe. They offer refrigerated shipping and accept small orders, which would be useful for us. However the charges are a bit higher at FFD than at Globelink. ConclusionsChoosing Globelink will save us work on customs forms and cost less.RecommendationsIt is recommended that Globelink is chosen due to their international network and documentation service.)瑙ｆ瀽锛?/div>鍏€?b>LISTENING(鎬婚鏁帮細0锛屽垎鏁帮細0.00)涔濄€?b>PART ONE(鎬婚鏁帮細0锛屽垎鏁帮細0.00)鍗併€?b>Conversation O ne(鎬婚鏁帮細1锛屽垎鏁帮細4.00)锛堝垎鏁帮細4.00锛?/div>濉┖椤?:__________________ 锛堟纭瓟妗堬細Z/3487/JF锛?/div>瑙ｆ瀽锛歔鍚姏鍘熸枃]1-4Man: Good afternoon. Stationery Supplies International, Customer Services Department, Michael speaking. How may I help you?Woman: Oh, hello. My name's Jennifer Gardiner. I'm calling from Fenmore Consultants. It's about the order which we received yesterday.Man: OK. Please can I have the order number?Woman: Yes, it's Z/3487/JE The problem is we've received several incorrect items.Man: Oh dear, sorry about that. We took on some new staff this week and we've had a few problems. Tell me what's wrong and we'll forward the correct order to you straightaway. Woman: Good. Well, firstly you sent the wrong size paper. We ordered 100 boxes of A5 paper, not A4. And the envelopes you sent were not the colour we ordered. We wanted pale green, not white.Man: Right, so that's A5 not A4 paper and pale green envelopes. Anything else?Woman: Yes. We also ordered 20 printer ink cartridges, that's the TrueJet BJC two foursix ... but you didn't send us any at all.Man: Oh dear, I'm really sorry. I can only apologise once again and assure you that the correct items will be on their way to you tonight, Special Delivery.Woman: What shall I do about the things we don't want?Man: Send them back to us, and we'll refund the full cost.Woman: Right. Thank you. Goodbye.Man: Bye bye.濉┖椤?:__________________ 锛堟纭瓟妗堬細pale green锛?/div>瑙ｆ瀽锛?/div>濉┖椤?:__________________ 锛堟纭瓟妗堬細BJC 246锛?/div>瑙ｆ瀽锛?/div>濉┖椤?:__________________ 锛堟纭瓟妗堬細Special Delivery锛?/div>瑙ｆ瀽锛?/div>鍗佷竴銆?b>Conversation Two(鎬婚鏁帮細1锛屽垎鏁帮細4.00)锛堝垎鏁帮細4.00锛?/div>濉┖椤?:__________________ 锛堟纭瓟妗堬細Marketing锛?/div>瑙ｆ瀽锛歔鍚姏鍘熸枃]5-8Woman: You have reached the offices of RT Communications. We're sorry there's no one to take your call at the moment. Please leave your message after the tone, stating who the messageis for and the date and time of your call. Thank you.Man: Hi, this is John Castellani from Loboprint. It's Saturday February fourth. This is a message for Joel Frisk, Marketing Department. It's about his visit next week. We've booked him into the International Hotel downtown for four nights - although we checked, and thereis still availability for a fifth night if he wants it. Our company driver will meet him atthe airport on his arrival. We've arranged for him to give a presentation on RT's digital office system to the Board of Directors on Wednesday morning... and then Mr Sachs, the General Manager, has invited him to dinner that evening. Please let us know by midday Monday if you want us to book an extra night at the hotel. We look forward to meeting him. Goodbye! 濉┖椤?:__________________ 锛堟纭瓟妗堬細International锛?/div>瑙ｆ瀽锛?/div>濉┖椤?:__________________ 锛堟纭瓟妗堬細driver / Loboprint driver / company driver 锛?/div>瑙ｆ瀽锛?/div>濉┖椤?:__________________ 锛堟纭瓟妗堬細night锛?/div>瑙ｆ瀽锛?/div>鍗佷簩銆?b>Conversation Three(鎬婚鏁帮細1锛屽垎鏁帮細4.00)Contact TrainingTelephone MessageDave Smith called from (9) about training.Can we provide a one-week course on (10) ?Would also like one-to-one courses in (11) .Recommended by someone from (12)Contact TrainingTelephone MessageDave Smith called from (9) about training.Can we provide a one-week course on (10) ?Would also like one-to-one courses in (11) .Recommended by someone from (12) 锛堝垎鏁帮細4.00锛?/div>濉┖椤?:__________________ 锛堟纭瓟妗堬細City Council锛?/div>瑙ｆ瀽锛歔鍚姏鍘熸枃] 9-12Woman: Contact Training, how can I help you?Man: Hello, this is Dave Smith calling from the City Council. I understand you run in-house training courses in word-processing and databases, things like that.Woman: Yes, are you looking for some training?Man: Well, yes, we've just taken on some new staff in our department and I'd be interestedto know if you have someone who could help them with databases - perhaps a one-week course? Woman: I'm sure we can.Man: Good. In addition to that - if it's possible - we have some other staff who need some individual training, but that would be in graphics.Woman: Oh yes, we do graphics courses. Did someone recommend us to you?Man: Yes, a friend of mine at Globe Insurance...Woman: Oh yes, we put on a course for them a few months ago.Man: They were very impressed...Woman: Good! Well, I'll just take a few details濉┖椤?:__________________ 锛堟纭瓟妗堬細databases锛?/div>瑙ｆ瀽锛?/div>濉┖椤?:__________________ 锛堟纭瓟妗堬細graphics锛?/div>瑙ｆ瀽锛?/div>濉┖椤?:__________________ 锛堟纭瓟妗堬細Globe Insurance锛?/div>瑙ｆ瀽锛?/div>鍗佷笁銆?b>PART TWO(鎬婚鏁帮細0锛屽垎鏁帮細0.00)鍗佸洓銆?b>Section One(鎬婚鏁帮細1锛屽垎鏁帮細5.00)1锛堝垎鏁帮細5.00锛?/div>濉┖椤?:__________________ 锛堟纭瓟妗堬細A锛?/div>瑙ｆ瀽锛歔鍚姏鍘熸枃]Woman: Hello, it's Rachel Lister here from Cross & Taylor. I got your letter accepting the post this morning. I'm just ringing to arrange a time for us to meet and sign your contract. Your departmental manager has asked me to go through it with you - and to answer any questions you have about holidays and the pension scheme and so on. I should be able to take you over to the sales department afterwards, so you can meet some of your future colleagues. 鍗佷簲銆?b>Section Two(鎬婚鏁帮細1锛屽垎鏁帮細5.00)1锛堝垎鏁帮細5.00锛?/div>濉┖椤?:__________________ 锛堟纭瓟妗堬細H锛?/div>瑙ｆ瀽锛歔鍚姏鍘熸枃]Nick: Mark, just a quick message - I'm on the way to the station. I've thought about our discussion at this afternoon's meeting and I think the research people do need to be involved, and right now. So can you set up a meeting with them for when I get back, say Thursday or Friday? Can you also send them an agenda based on what we discussed today? Thanks.鍗佸叚銆?b>PART THREE(鎬婚鏁帮細1锛屽垎鏁帮細8.00)锛堝垎鏁帮細8.00锛?/div>(1).Dr Carter's book, The Art of Giving Presentations,锛堝垎鏁帮細1.00锛?/div>A.has come out recently.B.was published last year. 鈭?/span>C.will reach bookshops next year.瑙ｆ瀽锛歔鍚姏鍘熸枃] 23-30Woman: Welcome to 'Mid Afternoon,' Dr Carter. Now, I imagine you're here in Birmingham to promote your recently published book 'The Art of Giving Presentations', Is that right? Man: Well, not really, no! In fact the book isn't really recent at all - it came out at the beginning of last year, I'm actually here this week to give a series of talks outlining some ideas I've had since then.Woman: So are these ideas the basis for your next book?Man: Well, it's really too early to talk about that!Woman: I see, Now tell me, how did you become involved in this particular area of communication skills?Man: Well, many years ago, as a young sales executive, I had to give presentations, but I felt I wasn't doing them very well. My boss never actually criticised me, and my colleagues weren't doing any better than me, but the point was that I didn't feel satisfied with my performance. You see, if I'm doing something, I have to do it well.Woman: So you decided to do something about improving your performance.Man: That's right. I tried to find some books to help me but there weren't really any available in those days... so I eventually decided on a totally practical approach: I tried to find out what my problem was by studying the way the best speakers gave presentations, by talking to them, even watching them prepare. Then I compared their performance with mine. Woman: And what was your main problem? Nervousness? I know that's mine.Man: Well I had always thought it was nervousness, and it's true that at the time I had no techniques for dealing with that. But I think audiences accept the fact that speakers get nervous, and it really doesn't matter. No, I discovered that my No. I problem was preparation. Nobody had ever told me anything about how to prepare, and I didn't really knowhow to do it properly.Woman: And when you realised that, what did you change?Man: Well, before, I used to go through the whole presentation in an empty room on my own. The first change in my approach came when I realised it's much more realistic and much more useful to do it in front of two or three colleagues. That way you get some feedback. Otherwise you have no idea whether or not your presentation is effective, or which parts might need further attention.Woman: Is that the method you recommend now?Man: Well, not quite. What I would advise is to make a video of your practice presentation...Woman: Instead of using colleagues?Man: No, a recording of your presentation to them. Then it's easier for all of you to go back and see what's wrong and how it can be improved, It's actually much better than recording other people doing real presentations, however good they are.Woman: So that's the preparation, but are there any factors which make the presentationitself difficult, even if you are prepared?Man: Well obviously, yes. Some speakers imagine, quite wrongly, that every audience is unfriendly, at least at the beginning. And this affects their performance. And then there may be a few people who worry about their lack of experience of public speaking. But really what bothers most speakers is things like the OHP and the microphone - are they going to work, and so on,Woman: Are there any techniques that are effective for overcoming feelings of anxiety? Man: Well, first I have to say that some people never manage to reduce their anxiety levels. What they can do is learn to relax their face muscles while they speak, so that they look relaxed, even though they feel just as anxious as before. In order to really reduce anxiety, some experts recommend concentrating on something that you enjoyed recently - but I findthis is hopeless... I just forget what I was about to say! For me though, what has worked is some simple breathing exercises, breathing in deeply and slowly while making a pause. This definitely slows down the heart rate. That's what I would try first of all.Woman: Something we can all try - Dr Carter, thank you very much indeed.(2).Dr Carter says he decided to improve his presentations because锛堝垎鏁帮細1.00锛?/div>A.he felt he was doing worse than his colleagues.B.his boss expressed dissatisfaction with his performance.C.he dislikes doing anything badly. 鈭?/span>瑙ｆ瀽锛?/div>(3).To improve his own performance Dr Carter studied锛堝垎鏁帮細1.00锛?/div>A.books about public speaking.B.the techniques of good presenters. 鈭?/span>mon mistakes made by speakers.瑙ｆ瀽锛?/div>(4).What does Dr Carter say about nervousness?锛堝垎鏁帮細1.00锛?/div>A.There is no effective way to control it.B.Audiences don't think it's a major problem. 鈭?/span>C.He was given the wrong advice about it.瑙ｆ瀽锛?/div>(5).What was the first change Dr Carter made to his preparation?锛堝垎鏁帮細1.00锛?/div>A.He began practising alone in a big room.B.He got colleagues to listen to his performance. 鈭?/span>C.He began to develop key parts of his presentation.。
镧系元素
+II Sm(4f66s2) Sm(4f6)
Eu(4f76s2) Tm(4f136s2) Yb(4f146s2) Eu(4f7) Tm(4f13) Yb(4f14)
从4f电子层结构来看，其接近或保持全空、半满及全 满时的状态较稳定(也存在热力学及动力学因素)。
水溶液的稳定性：
Ce4+(4fo) ＞ Pr4+(4f1) Sm2+(4f6) ＜ Eu2+(4f7)
LnCl3
LnCl3·6H2
O
LnCl标3和准L溶nC解l3焓·6H2O的
镧系元素的单质
1. 镧系金属单质的化学性质
碱金属 Eo = -2.9左右 碱土金属 Eo = -2.3—2.9
Al E o = -1.96
Ln E o = -2.3左右
(1) 活泼性仅次于碱金属和Ca、Sr、Ba而与Mg 类似；
89 Ac 90 Th 91 Pa 92 U 93 Np 94 Pu 95Am 96 Cm 97 Bk 98 Cf 99 Es 100 Fm 101Md 102No 103 Lr
锕 钍 镤 铀镎 钚 镅 锔 锫 锎 锿 镄 钔 锘 铹
镧系元素的发现
镱 1879年 钇 1794年 镱 1878年
镥 1905-1907年 钇土1794年 铒 1843年 钪 1879年
不同点：
铈组
钇组
硫酸盐 碳酸盐 草酸盐
不溶于M2SO4溶液 不溶于CO32-溶液 不溶于C2O42-溶液
溶于M2SO4溶液 溶于CO32-溶液 溶于C2O42-溶液
2. +IV化合物
Ce(4f15d16s2),Pr(4f36s2),Tb(4f96s2),Dy(4f106s2)能形 成+IV氧化态即Ce(4f0),Pr(4f1),Tb(4f7),Dy(4f8) 。
苏州锟高达精密设备有限公司介绍企业发展分析报告模板
Enterprise Development专业品质权威Analysis Report企业发展分析报告苏州锟高达精密设备有限公司免责声明:本报告通过对该企业公开数据进行分析生成，并不完全代表我方对该企业的意见，如有错误请及时联系;本报告出于对企业发展研究目的产生，仅供参考，在任何情况下，使用本报告所引起的一切后果，我方不承担任何责任:本报告不得用于一切商业用途，如需引用或合作，请与我方联系:苏州锟高达精密设备有限公司1企业发展分析结果1.1 企业发展指数得分企业发展指数得分苏州锟高达精密设备有限公司综合得分说明：企业发展指数根据企业规模、企业创新、企业风险、企业活力四个维度对企业发展情况进行评价。
该企业的综合评价得分需要您得到该公司授权后，我们将协助您分析给出。
1.2 企业画像类别内容行业空资质空产品服务：通用设备制造（不含特种设备制造）；专用设1.3 发展历程2工商2.1工商信息2.2工商变更2.3股东结构2.4主要人员2.5分支机构2.6对外投资2.7企业年报2.8股权出质2.9动产抵押2.10司法协助2.11清算2.12注销3投融资3.1融资历史3.2投资事件3.3核心团队3.4企业业务4企业信用4.1企业信用4.2行政许可-工商局4.3行政处罚-信用中国4.5税务评级4.6税务处罚4.7经营异常4.8经营异常-工商局4.9采购不良行为4.10产品抽查4.12欠税公告4.13环保处罚4.14被执行人5司法文书5.1法律诉讼（当事人）5.2法律诉讼（相关人）5.3开庭公告5.4被执行人5.5法院公告5.6破产暂无破产数据6企业资质6.1资质许可6.2人员资质6.3产品许可6.4特殊许可7知识产权7.1商标7.2专利7.3软件著作权7.4作品著作权7.5网站备案7.6应用APP7.7微信公众号8招标中标8.1政府招标8.2政府中标8.3央企招标8.4央企中标9标准9.1国家标准9.2行业标准9.3团体标准9.4地方标准10成果奖励10.1国家奖励10.2省部奖励10.3社会奖励10.4科技成果11 土地11.1大块土地出让11.2出让公告11.3土地抵押11.4地块公示11.5大企业购地11.6土地出租11.7土地结果11.8土地转让12基金12.1国家自然基金12.2国家自然基金成果12.3国家社科基金13招聘13.1招聘信息感谢阅读:感谢您耐心地阅读这份企业调查分析报告。
番茄粉生产的干燥技术
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FANUC900、9000参数
FANUC-0MC系统900以后参数FANUC--OMC系统参数可以分为两大类：一类：公开型参数——它是系统与机床有关设定的参数，这类参数在FANUC公开发表的各类资料中可以查到其各参数的含义，目前从FANUC有关资料中可查到约有1800多个参数。
有关公开型参数剖析，可在FANUC公司提供有关资料中可查到，不再在本文中论述。
另一类：密级型参数——它是FANUC系统的功能参数，这类参数都属于状态型参数。
每个参数既无名称和符号，也无说明。
这是在随机所带的参数表中有初始的设定值，每一个都代表某种功能的有，无。
只有这些参数的所代表的功能含义在FANUC所提供资料中是不提供任何解释。
FANUC—OMC中900--939参数，就是此类型参数。
它代表OMC系统许多功能。
按900--939号参数共40号，每个参数号为八位，40号参数共320个参数。
但是FANUC公司没有全部设置，目前我们已了解到密级型参数约有80余个。
下面将对这些密级型参数进行剖析。
FANUC--OMC密级型(功能)参数又可以分成二类：一、基本功能参数：即FANUC公司在提供系统时的基本功能的参数，如下：二、选购功能参数：实际上选购功能中又分为两类：A、需要有硬件配合，(即除了将功能参数设置“1”外，还需有硬件的要求。
)可能在价格上要高一些。
B、不需要硬件配合实现该功能。
而目前FANUC--OMC系统提供时，大部分软件已固化在主板上，所以不需要硬件配合的功能，只要将相应功能参数位的状态设置为“1”即可开通该功能。
对于早期版本软件，有可能没有完全固化在主板上时，若当将该功能参数设置“1”后，系统可能不启动或死机时，重新将该功能参数置“0”即可恢复。
§2 功能参数设定方法和传输一、功能参数设定方法1、压住紧急开关，打开机器电源。
2、将方法开关设定在“MDI”方式。
(以下步骤请保持紧急开关在压住状态，不可打开)3、按压PARAMETER键，选择显示参数画面。
《直角三角形判定》例题及讲解
直角三角形的判断1．勾股定理的逆定理(1)勾股定理的逆定理的内容：假如三角形的三边长a，b，c知足a2＋b2＝c2，那么这个三角形是直角三角形．(2)勾股定理的逆定理的释疑：许多的同学对知道三角形三边知足a2＋b2＝c2能获得直角三角形这样的一种结论拥有思疑的态度，其实经过三角形的全等能够很简单地证明出来．比方：假如在△ABC中，AB＝c，BC＝a，CA＝b，而且知足a2＋b2＝c2(以下图)，那么∠C＝90°.作△A1B1C1，使∠C1＝90°，B1C1＝a，C1A1＝b，则∵a2＋b2＝c2，∴A1B1＝c(A1B1＞0)．在△ABC和△A1B1C1中，∵BC＝a＝B1C1，CA＝b＝C1A1，AB＝c＝A1B1，∴△ABC≌△A1B1C1.∴∠C＝∠C1＝90°.222 A1B1＝a＋b.辨误区勾股定理的逆定理的条件(1)不可以说成在直角三角形中，由于还没有确立直角三角形，自然也不可以说“斜边”和“直角边”．(2)当知足a2＋b2＝c2时，c是斜边，∠C是直角．利用勾股定理的逆定理判断一个三角形能否为直角三角形的思路是：先确立最长边，算出最长边的平方及另两边的平方和，假如最长边的平方与另两边的平方和相等，则此三角形为直角三角形．对啊！到当前为止判断直角三角形的方法有：①说明三角形中有一个直角；②说明三角形中有两边相互垂直；③勾股定理的逆定理.【例1】以下图，∠C＝90°，AC＝3，BC＝4，AD＝12，BD＝13，问：1/6AD⊥AB吗？试说明原因．解：AD⊥AB.原因：依据勾股定理得AB＝AC2＋BC2＝5.在△ABD中，AB2＋AD2＝52＋122＝169，BD2＝132＝169，所以AB2＋AD2＝BD2.由勾股定理的逆定理知△ABD为直角三角形，且∠BAD＝90°.故AD⊥AB.2．勾股定理的逆定理与勾股定理的关系勾股定理是经过“形”的状态来反应“数”的关系的，而勾股定理的逆定理是经过“数”的关系来反应“形”的状态的．(1)勾股定理是直角三角形的性质定理，勾股定理的逆定理是直角三角形的判断定理，二者是互逆的．(2)联系：①二者都与a2＋b2＝c2相关，②二者所议论的问题都是直角三角形问题．(3)差别：勾股定理是以“一个三角形是直角三角形”为条件，从而获得这个直角三角形三边的数目关系“a2＋b2＝c2”；勾股定理的逆定理则是以“一个三角形的三边知足a2＋b2＝c2”为条件，从而获得这个三角形是“直角三角形”．(4)二者关系可列表以下：定理勾股定理勾股定理的逆定理假如直角三角形的两直角边长分别假如三角形的三边长a，b，c知足内容为a，b，斜边长为c，那么a2＋b2a2＋b2＝c2，那么这个三角形是直角＝c2三角形直角三角形的两直角边长分别为a，三角形的三边长a，b，c知足a2＋题设b，斜边长为c b2＝c22/6结论a2＋b2＝c2三角形是直角三角形用途是直角三角形的一个性质判断直角三角形的一种方法【例2】如图，在△ABC中，D为BC边上的点，已知：AB＝13，AD＝12，AC＝15，BD＝5，求DC.剖析：先用勾股定理的逆定理判断形状，而后用勾股定理求数据．解：∵AD2＋BD2＝122＋52＝132＝AB2，∴由勾股定理的逆定理知△ADB为直角三角形．∴AD⊥BC.在Rt△ADC中，由勾股定理，得DC2＝AC2－AD2＝152－122＝92.∴DC＝9.3．勾股数勾股数：知足a2＋b2＝c2的三个正整数，称为勾股数．(1)由定义可知，一组数是勾股数一定知足两个条件：①知足a2＋b2＝c2；②都是正整数．二者缺一不行．(2)将一组勾股数同时扩大或减小同样的倍数所得的数仍知足a2＋b2＝c2(但不必定是勾股数)，以它们为边长的三角形是直角三角形，比方以cm为边长的三角形是直角三角形．【例3】①7,24,25；②8,15,19；③；④3n,4n,5n(n＞1，且为自然数)．上边各组数中，勾股数有______组．()．A．1B．2C．3D．4分析：①√∵72＋242＝252，且7,24,25都是正整数，∴7,24,25是勾股数．②×∵82＋152≠2，∴8,15,19不是勾股数．19③×∵不是正整数，∴，，不是勾股数．∵(3n)2＋(4n)2＝25n2＝(5n)2(n＞1，且为自然数)，且它们都是④√正整数，∴3n,4n,5n(n＞1，且为自然数)是勾股数.答案：B3/6析规律勾股数的判断方法判断勾股数要看两个条件，一看可否知足a2＋b2＝c2，二看能否都是正整数．这二者缺一不行．4．勾股定理的逆定理的应用勾股定理的逆定理在解决实质问题中有着宽泛的应用，能够用它来判断是不是直角．家里建房时，常需要在现场画出直角，在没有丈量角的仪器的状况下，工人师傅经常利用勾股定理的逆定理作出直角．【例4】如图是一农民建房时挖地基的平面图，按标准应为长方形，他在挖完后丈量了一下，发现AB＝DC＝8m，AD＝BC＝6m，AC＝9m，请你帮他看一下，挖的地基能否合格？剖析：此题是数学识题在生活中的实质应用，所以我们要把实质问题转变成数学识题来解决，运用直角三角形的判断条件，来判断它能否为直角三角形．解：∵AD2＋DC2＝62＋82＝100，AC2＝92＝81，∴△ADC不是直角三角形，∠ADC≠90°.又∵按标准应为长方形，四个角应为直角，∴该农民挖的地基不合格．5．利用非负数的性质判断三角形的形状在由一个等式求三角形的三边长时，常常先把等式化为a2＋b2＋c2＝0的形式，再由a＝0，b＝0，c＝0，求得三角形三边之长，利用计算来判断△ABC是不是直角三角形．谈要点判断三角形的形状由条件等式来判断三角形的形状，就是将已知的条件等式变形，再依据它的构造特色，得出a，b，c的关系，从而判断三角形的形状．4/6【例5】假如一个三角形的三边长a，b，c知足a2＋b2＋c2＋338＝10a＋24b＋26c，试说明这个三角形是直角三角形．剖析：此题需要将已知等式进行变形，配成完整平方式，求出a，b，c的值，而后再说明．解：将式子变形，得a2＋b2＋c2＋338－10a－24b－26c＝0，即a2－10a＋25＋b2－24b＋144＋c2－26c＋169＝0.整理，得(a－5)2＋(b－12)2＋(c－13)2＝0.所以a－5＝0，b－12＝0，c－13＝0，∴a＝5，b＝12，c＝13.∵a2＋b2＝52＋122＝132＝c2，∴这个三角形是直角三角形．6．勾股定理及其逆定理的综合应用(1)利用勾股定理解决生活中的实质问题时，要点是利用转变的思想把实质问题转变为数学模型(直角三角形)来解决．(2)综合运用勾股定理及其逆定理，将不规则图形转变为规则图形是常用的数学方法，在这里，一方面要熟记常用的勾股数；另一方面要注意到：假如一个三角形的三边长已知或拥有某些比率关系，那么就能够用勾股定理的逆定理去考证其是不是直角三角形．【例6】以下图，在四边形ABCD中，AD＝3cm，AB＝4cm，∠BAD＝90°，BC＝12cm，CD＝13cm.求四边形ABCD的面积．剖析：依据AD＝3cm，AB＝4cm，∠BAD＝90°，可连结BD组成直角三角形，经过判断△BCD是直角三角形解决问题．5/6解：连结BD，在△ABD中，∵AD＝3cm，AB＝4cm，∠BAD＝90°，依据勾股定理，得BD2＝AD2＋AB2＝32＋42＝52，∴BD＝5cm.在△BCD中，∵BD＝5cm，BC＝12cm，CD＝13cm，BD2＋BC2＝CD2，∴△BCD是直角三角形．∴四边形ABCD的面积＝S△ABD＋S△BCD＝12×3×4＋12×5×12＝36cm2.6/6。
【金版教程】2015届高考物理大一轮总复习 第二章 第1讲 光的折射 全反射 新人教版选修3-4
圆界面的法线是 过圆心的直线， 经 过两次折射后向 圆心偏折
应用
改变光的传播方 全反射棱镜，改变 向 光的传播方向
典例透析 一半圆柱形透明物体横截面如图所示，底面 AOB镀银(图
中粗线)，O表示半圆截面的圆心，一束光线在横截面内从M点
入射，经过AB面反射后从N点射出，已知光线在M点的入射角 为30°，∠MOA＝60°，∠NOB＝30°.求： (1)光线在M点的折射角； (2)透明物体的折射率．
解析： 两条光线的光路如图所示， 设射出玻璃后的交点是 P，光线Ⅱ从玻璃射出时的入射角为 i，折射角为 r，根据折射 sinr 定律得： n＝ sini 由几何关系可得 i＝30° 代入得 r＝ 60° 由几何关系可得 OP＝ 2Rcos30° OP＝ 3R.
答案： 3R
6. [光传播路径的确定方法]如图所示是一种折射率n＝1.5
确定P3、P4的位置． (3) 在操作时，手不能触摸玻璃砖的光洁光学面，更不能 把玻璃砖界面当尺子画界线． (4)在实验过程中，玻璃砖与白纸的相对位置不能改变．
一、基础知识题组 1. [光的反射、光的折射的光路图]很多公园的水池底都装
有彩灯，当一细束由红、蓝两色组成的灯光从水中斜射向空气
时，关于光在水面可能发生的反射和折射现象，下列光路图中 正确的是( )
sinθ1 sinθ2 不 能 说 n 与 ______ sinθ1 成 正 比 ， 与 (3) 定 义 式 ： n ＝ _______.
______ sinθ2 成反比．折射率由介质本身的光学性质和光的频率决
定、与入射角的大小无关．
c v ，因v<c，故任何介质的折射率总 (4)计算公式：n＝_____
2.注意事项
(1) 实验时，尽可能将大头针竖直插在纸上，且 P1 和 P2 之 间、 P2 和 O 点之间、 P3 与 P4 之间、 P3 与 O′ 之间距离要稍大一 些，这样可以减小确定光路方向时出现的误差． (2) 入射角 θ1 应适当大一些，以减小测量角度的误差，但
unifont90铝合金锭成分
unifont90铝合金锭成分
Unifont90铝合金锭的主要成分包括铝、铜、镁、锌、锰等元素，比例分别为铝90%、铜5.5%-6.5%、镁0.5%-1.0%、锌
0.1%-0.3%、锰0.1%-0.3%。
Unifont90铝合金锭是一种高性能的铝合金材料，具有高强度、良好的耐腐蚀性和优良的机械加工性能。
它是一种经过特殊处理的产品，具有自时效合金的特点，可以在低压压铸中表现出非常好的强度和伸长率性能。
此外，Unifont90铝合金锭还具有优良的机械抛光性能，可以满足各种强度要求较高的应用场景。
总的来说，Unifont90铝合金锭是一种高质量的铝合金材料，适用于各种需要高强度、耐腐蚀性和优良机械加工性能的场合。
请注意，这些成分可能会根据不同的生产厂家和产品类型有所差异。
如果您需要更详细的信息，建议直接联系生产厂家或查阅相关产品手册。
宁波锟久国际贸易有限公司介绍企业发展分析报告
Enterprise Development专业品质权威Analysis Report企业发展分析报告宁波锟久国际贸易有限公司免责声明:本报告通过对该企业公开数据进行分析生成，并不完全代表我方对该企业的意见，如有错误请及时联系;本报告出于对企业发展研究目的产生，仅供参考，在任何情况下，使用本报告所引起的一切后果，我方不承担任何责任:本报告不得用于一切商业用途，如需引用或合作，请与我方联系:宁波锟久国际贸易有限公司1企业发展分析结果1.1 企业发展指数得分企业发展指数得分宁波锟久国际贸易有限公司综合得分说明：企业发展指数根据企业规模、企业创新、企业风险、企业活力四个维度对企业发展情况进行评价。
该企业的综合评价得分需要您得到该公司授权后，我们将协助您分析给出。
1.2 企业画像类别内容行业空资质空产品服务：货物进出口；技术进出口；进出口代理；服装1.3 发展历程2工商2.1工商信息2.2工商变更2.3股东结构2.4主要人员2.5分支机构2.6对外投资2.7企业年报2.8股权出质2.9动产抵押2.10司法协助2.11清算2.12注销3投融资3.1融资历史3.2投资事件3.3核心团队3.4企业业务4企业信用4.1企业信用4.2行政许可-工商局4.3行政处罚-信用中国4.5税务评级4.6税务处罚4.7经营异常4.8经营异常-工商局4.9采购不良行为4.10产品抽查4.12欠税公告4.13环保处罚4.14被执行人5司法文书5.1法律诉讼（当事人）5.2法律诉讼（相关人）5.3开庭公告5.4被执行人5.5法院公告5.6破产暂无破产数据6企业资质6.1资质许可6.2人员资质6.3产品许可6.4特殊许可7知识产权7.1商标7.2专利7.3软件著作权7.4作品著作权7.5网站备案7.6应用APP7.7微信公众号8招标中标8.1政府招标8.2政府中标8.3央企招标8.4央企中标9标准9.1国家标准9.2行业标准9.3团体标准9.4地方标准10成果奖励10.1国家奖励10.2省部奖励10.3社会奖励10.4科技成果11 土地11.1大块土地出让11.2出让公告11.3土地抵押11.4地块公示11.5大企业购地11.6土地出租11.7土地结果11.8土地转让12基金12.1国家自然基金12.2国家自然基金成果12.3国家社科基金13招聘13.1招聘信息感谢阅读:感谢您耐心地阅读这份企业调查分析报告。