试卷G
小学上册G卷英语第3单元测验试卷(含答案)
小学上册英语第3单元测验试卷(含答案)英语试题一、综合题(本题有100小题，每小题1分，共100分.每小题不选、错误，均不给分)1.Parrots can ______ human speech.2.The __________ will help us know if we need to prepare for rain. (天气预报)3.The _____ (兔子) hops quickly to escape danger.4.________ (植物多样性研究) provides insights.5.My favorite toy story is about a brave ____. (玩具名称)6.The _______ of a flashlight beam widens as it moves away from the source.7.What is the opposite of "hot"?A. WarmB. ColdC. BoilingD. Freezing答案:B8.The __________ (历史的契机) can lead to breakthroughs.9.He is my good _____ (伙伴).10.The rain is _____ on the roof. (falling)11.My __________ (玩具名) can go really __________ (副词).12.The process of electrolysis uses electricity to cause a _____ reaction.13.The country known for its castles is ________ (以城堡闻名的国家是________).14.The _____ (植物参与) encourages active involvement in ecology.15.I like to ______ (参加) science experiments.16. A homogeneous mixture has a _____ composition throughout.17.What do we use to read?A. BookB. KnifeC. PlateD. Spoon答案:A Book18.What is the name of the popular animated series about a group of superheroes?A. Justice LeagueB. The AvengersC. Teen TitansD. X-Men答案: A19.The ______ (小鸟) chirps happily in the morning light, welcoming a new ______ (一天).20.中国的三国演义中有很多________ (heroes) 的故事。
理论知识试卷 - G
深圳市特种作业人员考核电工作业(操作证)理论知识试卷G试卷编号:2012001姓名：准考证号一，单项选择题（50题，每题1分，共50分；每题的备选答案中，只有一个最符合题意，请将其编号填涂在相应的方格内）1，根据IEC标准，单相三相制或三相五线制属于（）系统。
A. TTB.TN—CC.TN—SD.TN2，当线路或设备的负荷超过允许范围时，能适当延时后切断电源的保护方式是（）保护。
A.失压B.过载C.缺相D.短路3，互感器二次侧接地的目的是（）。
A.防止开路电压B.防止高压窜入低压的危险C.防止短路电流D.防止直接电击4，临时线架设时，距离门窗的距离不应小于（）m。
A.0.3B.0.2C.0.15D.0.75，漏电开关的额定电流应（）被保护电路的最大负载电流。
A.大于B.小于C.等于D.不大于6，三相四线低压系统中，当电气设备（）时，其零线应进行重复接地。
A. 采用接零保护B.采用接地保护C.采用过载保护D.短路保护7，根据GB3787—83的规定，Ⅲ类手持电动工具的绝缘电阻不应低于（）MΩ。
A.2B.7C.1D.0.58，停电线路上开始工作前，必须首先在工作现场（）。
A.逐个验电B.挂接地线C.悬挂标示牌D.装设临时遮拦9，热继电器的保护特性是（）的，即电流越大，动作时间越短。
A.与时间成正比B.正时限C.反时限D.与时间成反比10，根据《供电营业规则》规定，（）公用高压线路供电的，以用户分界处或配电室前的第一断路器或第一支持物为分界点，第一断路器或第一支持物属供电企业。
A.10KV及以下B.35KV及以上C. 100KVD.20KV及以上11，电力变压器、电动机等在投入运行前均需作（）试验。
A.直流耐压B.工频耐压C.泄漏电流D.压力12，母线的着色有统一规定，其中不接地中性线的颜色规定为（）。
A.白色B.绿色C.蓝色D.紫色13，低压电力电缆摇测绝缘电阻时，应选用兆欧表的额定电压是（）。
A.2500VB. 500VC.1000VD. 250V14，绝缘监视是（）电网中必不可少的安全措施。
G卷-新员工品质培训考核试卷及参考答案20191113
姓名：岗位： 新员工 实习 在职 得分：一．判断题（共50分，每题5分，对打√，错打×）1.品质检验通过观察和判断，适当时结合测量、试验所进行的符合性评价。
（)2.首件是指在生产开始时（上班或换班）或工序因素调整后（换人、换料、换活、换工装、换模具、换检具、调整设备等）对加工的第1件或前几件（一般3-5件）产品进行的检验。
（）3.首件确认的目的是预防出现批量性错误，减少质量风险。
（）4.终检的目的就是挑选出不合格品，放行合格品。
（）5. IQC即来料品质控制也称进料检验员，是企业来料的品质把关者，是对外购物料的品质验证。
（）6.品质管理两大要素一是会用品管手法；二是经验丰富。
（）7.操作者对自己所生产的产品，按照作业指导书、工艺卡或相应的技术标准进行的检验叫做自检。
（）8.AQL:称为允许接收品质水准，简称允收水准。
( )9.品质管理是在生产管理方面指挥和控制组织的协调活动。
（）10.返工是为使不合格产品满足预期用途而对其所采取的措施。
（）二、多项选择题（每题5 分，共25 分，少选、错选、多选不给分）1.IPQC发现问题时，当机立断处理制程异常：（）A先制止，再操作B先纠正，再作业C先关机，再通报D先符合，再完成2.过程巡检的工作方法有哪些？( )A首件确认B过程巡检C品质稽核D末件对比3.来料检验其职责有哪些？( )A来料检验B供应商品质管理C跟踪生产过程中的不良品D来料不合格及时发出SCAR(供应商改善行动要求单)4.来料检验不合格处理结果一般分为以下哪几种？( )A合格B拒收C特采D挑选5.IPQC在过程巡检时以下哪种情况需要重点关注？（）A新产品新工艺B品质不稳定时C新员工操作D换模时三、简答题：（共25分，1题10分，2题15分）1.如何理解品质检验、品质保证和品质经营的区别？（10分）2.当QC及IPQC发现不合格时，应该如何处理？（15分）2019.10.12姓名：岗位： 新员工 实习 在职 得分：二．判断题（共50分，每题5分，对打√，错打×）1.品质检验通过观察和判断，适当时结合测量、试验所进行的符合性评价。
G通信设备考核试卷
D. SHA
18. G通信设备中，以下哪些技术可以用来改善信号同步？（）
A.同步序列B.导Fra bibliotek信号C.时间同步
D.频率同步
19.以下哪些是G通信设备中的能量效率优化策略？（）
A.动态调整发射功率
B.优化网络规划
C.负载均衡
D.采用更高效的天线技术
20. G通信设备中，以下哪些技术可以用于提高信号的空间利用效率？（）
A.波束成形
B.空分复用
C.多输入多输出(MIMO)
D.单天线传输
三、填空题（本题共10小题，每小题2分，共20分，请将正确答案填到题目空白处）
1. G通信设备中，信号的传输速率与__________、__________和__________等因素有关。
2.在G通信设备中，为了提高信号的抗干扰能力，常采用__________和__________技术。
B. FCC标准
C. IEC标准
D. RoHS标准
10. G通信设备中，以下哪些部件可能会受到静电放电的影响？（）
A.射频组件
B.基带处理器
C.电源管理IC
D.电池
11.以下哪些措施可以增强G通信设备的抗多径能力？（）
A.使用分集天线
B.采用多径抑制算法
C.提高信号发射功率
D.使用频率选择性衰落对抗技术
D.射频前端
15.以下哪些技术可以提高G通信设备的网络容量？（）
A.小区间干扰协调
B.载波聚合
C.高阶调制
D.增强覆盖
16. G通信设备在部署时需要考虑以下哪些环境因素？（）
A.气候条件
B.地理位置特征
C.建筑物材料
D.现有信号覆盖
部编版小学下册G卷语文第二单元真题试卷(含答案)
部编版小学下册语文第二单元真题试卷(含答案)考试时间：90分钟（总分:140）B卷一、综合题(共计100题)1. 小朋友们在草地上____。
答案：追逐2. 夏天的时候我们去____游泳。
答案：海边3. 哪个城市以“水城”而闻名？A. 威尼斯B. 巴黎C. 伦敦D. 罗马4. 我们要互相____，共同进步。
答案：帮助5. 什么是彗星？A. 短暂出现在天空中的星体B. 有尾巴的冰冻天体C. 一种发光的星星D. 一颗流星6. 听力填字：我们要与_______做朋友。
7. 我们要好好____，才能取得好成绩。
答案：学习8. 小朋友们在操场上____（tī）着球，玩得不亦____（lè）乎。
答案：踢乐9. 小鸟在树上____。
答案：歌唱10. 妈妈给我买了一个____的玩具。
答案：新11. 如果没有大气层，地球上的天空是什么颜色？A. 蓝色B. 黑色C. 灰色D. 白色12. 松下问童子，_______言师采药。
答案：何13. 宇宙中的最远星系被称为：A. 银河系B. 着名星系C. 哈勃星系D. 螺旋星系14. 拼音填字：小鸭子跟着妈妈（______）(zǒu) 在小河边，学习游泳的本领。
15. 小猫在阳光下____。
答案：打盹16. 我喜欢在阳光明媚的日子里去____（pā）游，感受阳光的温暖。
答案：爬17. 我们的班级有____个同学。
答案：三十18. 小朋友们在草地上____。
答案：追逐19. 妈妈给我买了一个____的玩具。
答案：新20. 我们要保护____，让它变得更美丽。
答案：环境21. 同学们在课间____。
答案：聊天22. 今天的课堂气氛很____。
答案：活跃23. 拼音填字：森林里有许多（______）(shēng) 物，它们共同生活在这个美丽的家园。
24. 每当听到熟悉的____（yīn）乐，我就会想起美好的____（jī）忆。
答案：音乐记25. 我们要爱护____。
答案：动物26. 我们应该尊重____，与人为善。
雅思g类真题试卷
雅思g类真题试卷
雅思G类真题试卷
雅思考试是全球范围内最受欢迎的英语语言能力测试之一，而G类真题试卷则是专门针对需要移民或在海外学习工作的人群设计的考试。
这份试卷涵盖了听力、阅读、写作和口语四个方面的考察内容，要求考生具备一定的英语语言能力和应对海外生活工作的能力。
在听力部分，考生需要通过听取录音材料来回答一系列问题，这要求考生具备较强的听力理解能力和语速适应能力。
而阅读部分则要求考生阅读一系列文章并回答相关问题，考察考生的阅读理解能力和语言表达能力。
写作部分是G类真题试卷的重点之一，考生需要在规定的时间内完成两篇独立的写作任务。
这要求考生具备一定的写作能力和逻辑思维能力，能够清晰地表达自己的观点和观点支持。
最后是口语部分，考生需要进行一系列口语测试，包括自我介绍、简短对话和话题演讲等。
这要求考生具备流利的口语表达能力和丰富的词汇量，能够在不同场合下自如地表达自己的想法和观点。
总的来说，雅思G类真题试卷是一项综合性的考试，要求考生在语言能力、逻辑思维和沟通能力等方面都具备一定的水平。
通过认真准备和练习，考生们一定能够在考试中取得理想的成绩，为自己的海外生活和工作打下坚实的语言基础。
《大学物理》考试试卷(G)及答案解析
《大学物理》考试试卷（G ）及答案解析一、简答题（每题4分，共16分）1.简述平面简谐波在一周期之内，某一体积元动能和势能的变化过程 知识点：简谐波的能量，类型A答案：动能和势能变化是同步调的，在最大位置，动能和势能均为零，在平衡位置，动能和势能都达到最大值，体积元不断从前一介质获得能量，又不断把能量传给后面的介质。
2.什么是光栅衍射中的缺级现象？答：光栅衍射条纹是由N 个狭缝的衍射光相互干涉形成的，对某一衍射角若同时满足主极大条纹公式和单缝衍射暗纹公式，那么在根据主极大条纹公式应该出现主明纹的地方，实际不出现主明纹，这种现象称为缺级。
3. 指出以下各式所表示的物理含义:()()()()RT i kT i kT kT 2423232211 知识点 气体的能量 类型A答案: （1）表示理想气体分子每个自由度所具有的平均能量（2）表示分子的平均平动动能（3）表示自由度数为i 的分子的平均能量（4）表示分子自由度数为i 的1mol 理想气体的内能4. 简述热力学第二定律的两种表述。
答案：开尔文表述：不可能制成一种循环工作的热机，它只从单一热源吸收热量，并使其全部变为有用功而不引起其他变化。
克劳修斯表述：热量不可能自动地由低温物体传向高温物体而不引起其他变化。
二、选择题（每小题3分,共24分）1．一物体做简谐振动，其振动曲线如图所示：则振动的初相位是（ ）。
（A ）3π- （B ）3π （C ） 32π （D ）32π-知识点：简谐振动答案：A2. 传播速度为100m/s ，频率为50Hz 的平面简谐波在波线上相距为0.5m 两点之间的相位差为（ ）A ）3π （B ）6π （C ） 2π （D ）4π知识点：波形图答案：C3. 用波长为λ的平行单色光照射双缝,在光屏上偏离中心的p点恰好出现亮条纹则: （）（A）改用波长为2λ的单色光照射,p点处一定出现亮条纹（B）改用波长为2λ的单色光照射,p点处一定出现暗条纹（C）改用波长为λ/2的单色光照射,p点处一定出现亮条纹（D）改用波长为λ/2的单色光照射,p点处一定出现暗条纹答案C知识点：双缝干涉5. 在夫琅和费单缝衍射中，对于给定的入射光，当缝宽度变小时，除中央亮纹的中心位置不变外，各级衍射条纹。
小学下册G卷英语第五单元期末试卷[含答案]
![小学下册G卷英语第五单元期末试卷[含答案]](https://img.taocdn.com/s3/m/0f3965735e0e7cd184254b35eefdc8d376ee14dd.png)
小学下册英语第五单元期末试卷[含答案]考试时间：90分钟（总分:140）B卷一、综合题(共计100题共100分)1. 听力题：The __________ is a famous bridge in San Francisco.2. 填空题：We will _______ (参加) the concert.3. 听力题：The _______ has deep roots in the ground.4. 填空题：Winston Churchill was the Prime Minister of Britain during __________ (二战).5. 填空题：My favorite dish is ______ (米饭).6. 听力题：The book is _____ (interesting/boring).7. 选择题：What do we call the process of converting a liquid into a solid?A. FreezingB. MeltingC. EvaporationD. Condensation8. 填空题：You can find ______ (药草) in the kitchen.9. 听力题：The process of respiration takes place in the _______ of cells.10. 填空题：I want to _______ (了解) different cultures.11. 填空题：________ (植物油) comes from seeds and nuts.12. 听力题：The __________ is a famous body of water that connects two oceans.13. 选择题：What do you call a place where you can borrow books?A. SchoolB. LibraryC. StoreD. Park答案:B14. 选择题：What do we call an animal that lives both in water and on land?A. FishB. ReptileC. AmphibianD. Mammal答案:C15. 选择题：What is the name of the large body of freshwater in North America?A. Great LakesB. Amazon RiverC. Mississippi RiverD. Nile River16. 选择题：What do you call a young moose?A. CalfB. PupC. KitD. Fawn答案:A17. 听力题：A __________ is a type of mixture where particles do not settle.18. 选择题：Which animal is known for its ability to change colors?A. ChameleonB. LizardC. GeckoD. Turtle答案：A19. 选择题：What do we call the area of land that is covered by ice?A. GlacierB. Ice capC. Ice fieldD. All of the above答案: D. All of the above20. 选择题：What is the name of the famous British author known for the Harry Potter series?A. J.R.R. TolkienB. J.K. RowlingC. C. S. LewisD. Agatha Christie21. 听力题：The chemical formula for -decanol is ______.22. 填空题：My friend is a _____ (艺术家) who creates murals.23. 选择题：What is the name of the fairy tale character who lost her way in the woods?A. GoldilocksB. CinderellaC. Little Red Riding HoodD. Snow White24. 填空题：I dream of becoming a ______ (医生) one day. I want to help people and make them feel ______ (健康).25. 听力题：The chemical formula for nitric acid is ______.26. 选择题：What do we call the study of ancient artifacts?A. AnthropologyB. ArchaeologyC. HistoryD. Sociology答案:B27. 听力题：A chemical reaction can create new ______.28. 填空题：In _____ (智利), you can find the Atacama Desert.29. 选择题：What do we call a person who studies the weather?A. ClimatologistB. MeteorologistC. EnvironmentalistD. Geologist30. 选择题：What do you call the thing you open to read?A. BookB. MagazineC. NewspaperD. Journal答案: A31. 听力题：A ______ is a small creature that can be very fast.32. 听力题：A ______ is a type of animal that can hop.33. 听力题：The process of filtration is used to separate ______ mixtures.34. 听力题：We will go ______ during the summer. (camping)35. 听力题：The capital of Estonia is _______.36. 听力题：A diatomic molecule consists of ______ atoms.37. 听力题：A ______ is a natural feature that influences local ecosystems.38. 选择题：What is the name of the first artificial satellite launched into orbit?A. Sputnik 1B. Explorer 1C. Vanguard 1D. Luna 139. 填空题：The ______ (山羊) bleats and loves to climb.40. 填空题：The _______ (蜗牛) carries its home on its back.41. 填空题：I have a ________ (遥控直升机) that I fly around the park.42. 选择题：Which planet is known as the Red Planet?A. EarthB. VenusC. MarsD. Jupiter43. 填空题：My favorite snack is _______ and crunchy.44. 听力题：My sister is a ______. She loves to explore new technologies.45. 填空题：The ancient Egyptians built ________ as monuments to their gods.46. 选择题：What do we call a person who studies the stars and planets?A. AstronomerB. GeologistC. MeteorologistD. Biologist47. 填空题：The __________ was an important event in the history of the United States. (独立战争)48. 填空题：We celebrate _______ together.49. 填空题：A lizard can change its _______ to blend in.50. 填空题：The flower is blooming in the ______.A _______ is a reaction that produces a solid from a solution.52. 听力题：I see a _______ (frog) in the pond.53. 填空题：My neighbor has a _______ (动物). 它的名字是 _______ (名字).54. 填空题：My ________ (玩具名称) helps me understand the world around me.55. 选择题：What do you call the place where animals are kept for public display?A. ZooB. FarmC. ParkD. Aquarium答案:A56. 选择题：What is the name of the famous online shopping platform?A. eBayB. AmazonC. AlibabaD. Etsy答案：B57. 选择题：What is the name of the galaxy we live in?A. AndromedaB. Milky WayC. TriangulumD. Whirlpool答案: B58. 听力题：The ______ is a group of animals that includes whales and dolphins.59. 填空题：The ________ (树) in our garden has many beautiful flowers in spring.60. 填空题：My aunt is very __________ (友好的) and welcoming to everyone.The chemical formula for sodium phosphate is ______.62. 填空题：I want to be a ________ (老师) and teach children.63. 填空题：I have a toy _______ that can change shapes and forms.64. 听力题：The chemical symbol for europium is _____.65. 填空题：The _____ (兔子) has long ears and a short tail.66. 填空题：My dad is very __________ (可靠的).67. 选择题：How many continents are there?A. FiveB. SixC. SevenD. Eight68. 填空题：I have a special _______ (东西) that was given to me by my _______ (家庭成员). It is very _______ (形容词).69. 听力题：The chemical symbol for hafnium is ______.70. 选择题：What do we call a person who studies the universe?A. AstronomerB. AstrophysicistC. CosmonautD. Cosmologist答案：A71. 选择题：What is the main ingredient in a burger?A. BreadB. MeatC. CheeseD. LettuceA butterfly is a symbol of ________________ (变革).73. 听力题：Today is ________ (Monday).74. 选择题：What do you call a small, flying insect that is often a pest?A. MothB. FlyC. SpiderD. Beetle答案:B75. (Renaissance) artists were supported by wealthy patrons. 填空题：The ____76. 填空题：I like to share ______ with my classmates.77. 填空题：The puppy needs _______ (洗澡).78. 填空题：My cat likes to hide in _______ (盒子).79. 填空题：My sister enjoys __________ (弹吉他).80. 选择题：What instrument has a bow and strings?A. FluteB. ViolinC. TromboneD. Clarinet答案:B81. 填空题：The __________ (历史的社会构成) shape our identities.82. 选择题：What do we call a story that is made up or fictional?A. Non-fictionB. FableC. FantasyD. Myth答案: C83. 填空题：I have a __________ at school. (同学)84. 填空题：The first Olympic Games were held in _____.85. 填空题：My ________ (玩具名称) is made of soft material.86. 选择题：What is the first month of the year?A. JanuaryB. FebruaryC. MarchD. April87. 听力题：The boy has a new ________.88. 选择题：What is the main ingredient in risotto?A. RiceB. PastaC. WheatD. Barley89. 听力题：We have a _____ (照片) on the wall.90. 选择题：What do we call the time of day when the sun rises?A. NoonB. MorningC. EveningD. Midnight答案:B91. 填空题：I like to help my ______ (邻居) with their garden. It’s a nice way to make new ______ (朋友).92. 填空题：The __________ (历史的复杂性) requires careful study.93. 选择题：What is the main ingredient in bread?A. SugarB. FlourC. RiceD. Corn94. 填空题：The ________ is very friendly and loves to play.95. 听力题：A ______ is a large body of ice that moves slowly.96. 听力题：I like to fly ______ (kites) in the park.97. 听力题：A ________ is a geographical area defined by its climate.98. 听力题：A _______ is a compound that contains carbon.99. 选择题：What do we call the food we eat in the evening?A. BreakfastB. LunchC. DinnerD. Snack100. 填空题：The _____ (小鸭) paddles smoothly in the pond.。
《环境分析与监测》考试试卷（g）答案
《环境分析与监测》考试试卷（g）答案《环境分析与监测》考试试卷（G）⼀、填空题 (每空1分，共20分)1、《地表⽔环境质量标准》规定：⼆类⽔BOD5的浓度限值为。
《渔业⽔质标准》规定：DO在“任何时候不得低于”。
2、⽤碘量法测定溶解氧时，必须在现场于⽔样中加⼊和固定，如果得到的沉淀为⽩⾊，则说明⽔样没有存在；如果发现沉淀为棕⾊，则表⽰存在。
3、测定SO2时，影响显⾊反应的因素有；；；；。
4、对⽔体中不同形态氮素化合物的测定意义是：；；。
5、根据污染物质及其形成污染的性质，可将⽔体污染分为：；；三种主要类型。
6、在氮氧化物的采样中，主要防⽌的⼲扰因素是：；⼆、选择题（每题1.5分，共15分）1、若河⽔深为5~10m，在监测断⾯的每条采样垂线上，应设置的采样点的个数为（）A、1B、2C、3D、42、在下列液体中滴加酚酞指⽰剂，溶液显红⾊的是（）A、普通电热蒸馏⽔B、全玻⼆次蒸馏⽔C、已被固定的测氰废⽔D、已被固定的测砷废⽔3、采集烟道⽓中的尘粒时，若采⽓速度⼤于烟⽓速度，则测定结果（）A、偏⾼B、偏低C、准确D、不准确4、TSP的空⽓动⼒学当量直径为（）A、0~10µmB、0~50µmC、0~100µmD、10~100µm5、采集重⾦属污染的⼟壤样品，其采样⼯具应为（）A、铁制B、铅制C、不锈钢制D、塑料制6、Ag—DDC光度法测砷时，三⼄醇胺起何种作⽤（）A、有机酸B、有机碱C、络合剂D、氧化剂7、凯⽒氮是指（）A、全部有机氮B、部分有机氮+氨氮C、NO3-—ND、氨氮8、为验证⼤⽓扩散模式，应采⽤的布点⼏何图形是（）A、同⼼圆B、螺线C、扇形D、⽹格9、在⽔质监测中，⼀个河段的消减断⾯应布设⼏个（）A、⼀个B、两个C、三个D、四个10、监测河流⽔质的控制断⾯应设在距排污⼝（）A、下游1000~1500m处B、下游500~1000m处C、下游100~500m处D、上游100~500m处三、名词解释（每⼩题2分，共10分）1、等效连续声级Leq2、可吸⼊颗粒物：3、⾼锰酸盐指数：4、⽣化需氧量：5、系统误差四、判断改错题（每⼩题2分，共10分）1、挥发酚是指沸点在230℃以上的酚类。
通信技术G应用考核试卷
C.仅支持固定互联网接入
D.支持多种类型的通信服务
2. G通信技术中，下列哪种接入方式被用于4G网络？（）
A. TDMA
B. CDMA
C. OFDMA
D. FDMA
3.以下哪项不属于5G网络的三大应用场景？（）
A.增强移动宽带
B.低时延通信
C.大规模物联网
D.高速固定接入
4.在5G网络中，以下哪个术语表示大规模物联网？（）
13.在5G网络中，以下哪项技术主要用于提高连接密度？（）
A.大规模MIMO
B.小基站
C.网络切片
D.波束成形
14.以下哪项不是5G网络的关键性能指标？（）
A.数据传输速率
B.网络容量
C.覆盖范围
D.能耗
15. 4G LTE网络中，以下哪个过程用于移动设备在服务小区间切换？（）
A. RRC连接建立
B. RRC连接重建
7.在4G网络中，小区重选是用户设备在服务小区间切换的过程。（）
8. 5G网络的高频段通信不需要考虑信号穿透力的问题。（）
9. 4G网络中的载波聚合技术主要用于提高数据传输速率。（）
10. 5G网络中的网络切片技术可以为不同的服务提供定制化的网络资源。（）
五、主观题（本题共4小题，每题5分，共20分）
A.基站
B.控制平面
C.用户平面
D.移动管理实体
11.在5G网络中，以下哪个概念指的是通过网络资源灵活分配来满足不同服务需求的能力？（）
A.网络切片
B.网络功能虚拟化
C.软件定义网络
D.服务导向架构
12.以下哪个技术主要用于4G网络中的干扰管理？（）
A. CoMP
医疗器械行业G技术应用考核试卷
2.在医疗器械行业，______是指通过无线传感器网络实现远程监控患者健康的技术。( )
3. G技术中的______技术，可以帮助医生在手术过程中更精确地定位病变组织。( )
4.______是指将G技术与人工智能相结合，用于辅助医生进行疾病诊断的技术。( )
A.提高了手术安全性
B.减少了患者恢复时间
C.降低了医疗差错率
D.增加了医疗资源的浪费
6.以下哪些疾病诊断中，G技术起到了重要作用？()
A.癌症
B.心脏病
C.糖尿病
D.感冒
7. G技术在医疗器械行业中的挑战包括哪些？()
A.技术成熟度
B.成本控制
C.法规监管
D.医疗人员培训
8.以下哪些是G技术在医疗器械行业的发展趋势？()
C.食品行业
D.建筑行业
18. G技术在医疗器械行业的发展，以下哪个说法正确？()
A.仅限于大型医疗机构应用
B.有助于提高医疗服务的普及率
C.降低了医疗器械的可靠性
D.增加了医疗行业的运营成本
19.以下哪种情况不适合使用G技术进行疾病诊断？()
A.孕妇进行胎儿检查
B.老年人进行心脏检查
C.儿童进行生长发育评估
5. G技术在医疗器械行业的应用，能够帮助实现医疗服务的______和______。( )
6.目前，______是医疗器械行业中最常用的G技术之一，被广泛用于各种疾病的诊断。( )
7. G技术的应用，使得医疗器械的______和______得到了显著提升。( )
8.在G技术支持下，医疗器械可以实现______、______和______等功能。( )
小学下册G卷英语第4单元测验试卷
小学下册英语第4单元测验试卷考试时间：100分钟（总分:140）A卷一、综合题(共计100题共100分)1. 填空题：I saw a ________ swimming in the ocean.2. 选择题：What do we call the line that divides the Earth into the Northern and Southern Hemispheres?A. EquatorB. Prime MeridianC. Tropic of CancerD. Tropic of Capricorn答案:A3. 听力题：Fermentation is a process that converts sugars into ______.4. 听力题：My grandma enjoys making ____ (candies).5. 填空题：I enjoy going ______ during my holidays.6. 选择题：What is the name of the famous wizarding school in Harry Potter?A. HogwartsB. DurmstrangC. BeauxbatonsD. Ilvermorny答案:A7. 填空题：The anemonefish lives among sea ________________ (海葵).What is the largest continent on Earth?A. AfricaB. AsiaC. EuropeD. Antarctica答案: B9. 选择题：What do you call the first meal of the day?a. Lunchb. Dinnerc. Breakfastd. Snack答案:c10. 选择题：What do you call a person who studies insects?A. EntomologistB. BiologistC. ZoologistD. Botanist答案:A11. 填空题：_____ (生态旅游) promotes awareness of plant diversity.12. 填空题：The ______ (小鸟) builds its nest in spring.13. 听力题：The chemical formula for sodium chloride is ________.14. 听力题：A sound that is soft has a low ______ (amplitude).15. 选择题：What is the name of the famous wizard in J.K. Rowling's books?A. GandalfB. Harry PotterC. DumbledoreD. Merlin答案:B16. 听力题：A prism can split light into different _______.The ________ loves to climb up high.18. 填空题：The ________ is very gentle and loves to be petted.19. 听力题：The stars are ________ at night.20. 听力题：I have a ___ of ice cream. (bowl, box, bag)21. 填空题：The _______ (小长颈鹿) reaches for leaves high in the trees.22. 选择题：What is the opposite of hot?A. WarmB. ColdC. CoolD. Heat答案:B23. 填空题：The _____ (开花植物) can brighten any space.24. 选择题：What do you use to measure time?A. RulerB. ClockC. ScaleD. Thermometer答案:B25. 选择题：What do we call the middle of the day?A. MorningB. NoonC. EveningD. Night26. 选择题：What do we call a scientist who studies plants?A. BotanistB. ZoologistC. EcologistD. Microbiologist27. 选择题：What is the capital city of Turkey?A. AnkaraB. IstanbulC. IzmirD. Antalya28. 听力题：A __________ is a geological feature that can impact ecosystems and human activities.29. 听力题：A ______ is a step in the scientific method.30. 填空题：In nature, every plant has its own __________ (角色).31. 选择题：What is the capital of the Philippines?A. ManilaB. CebuC. DavaoD. Iloilo答案:A32. 选择题：What do we call the place where we go to learn about science?A. LaboratoryB. ClassroomC. MuseumD. School33. 填空题：The gopher digs tunnels in the ______ (土壤).34. 选择题：What do you call the place where you go to learn?A. ParkB. SchoolC. HospitalD. Store35. 听力题：Leaves can change color in _______.36. 选择题：What do you call the main character in a story?A. AntagonistB. ProtagonistC. HeroD. Villain答案: B37. 填空题：The ancient Greeks worshipped many different ________ (神).38. 听力题：The chemical formula for sodium chloride is _______.39. 填空题：My favorite animal is a ________ (小狗).40. ts are known for their _____ (香味). 填空题：Some pla41. 听力题：The chemical formula for butane is ______.42. 选择题：What is the main purpose of a book?A. To cookB. To readC. To writeD. To draw43. 填空题：My _____ (奶奶) makes delicious cookies.44. 听力题：The flower is very ___. (pretty)45. 填空题：The _____ (小鸟) is learning to fly. It flaps its wings excitedly. 小鸟正在学习飞翔。
小学三年级上册G卷英语第四单元期中试卷(含答案含解析)
小学三年级上册英语第四单元期中试卷(含答案含解析)英语试题一、综合题(本题有50小题，每小题2分，共100分.每小题不选、错误，均不给分)1.Which animal has a long tail?A. ElephantB. CatC. FishD. Bird2.What do we use to write?A. EraserB. PencilC. PlateD. Brush3.Can you _______ English?A. speaksB. speakC. speakingD. spoke4.I’m going to the __ to buy some food. I need to buy __, __, and __. I also need to buy some __ and a __. After I finish shopping, I will go home and cook a __ dinner for my family.5.We _______ (go) to the zoo every summer.6.Sarah is at the beach with her family. They have a big __________, and she is building a sandcastle. Sarah’s brother is swimming in the __________, while her mom is relaxing under a __________. They all feel __________ because it is a sunny day.7.Which one is a color?A. GreenB. KnifeC. PlateD. Spoon8.Which one is an animal?A. CarB. DogC. BananaD. Shoe9.I ______ (not/like) vegetables when I ______ (be) a child. Now, I ______ (eat) vegetables every day because I ______ (know) they ______ (be) healthy. Last week, I______ (try) a new vegetable dish, and I ______ (find) it delicious.10.Yesterday, we __________ (1) to the zoo to see the animals. The lions __________ (2) resting, but the monkeys __________ (3) jumping around. We __________ (4) many animals and __________ (5) a great time.11.Which of these is a month?A. MondayB. JanuaryC. SummerD. Christmas12.She _______ (not study) on weekends.13.This weekend, we ______ (have) a family trip to the zoo. We ______ (see) many animals, such as lions, tigers, and monkeys. My little brother ______ (be) very excited when he ______ (see) the elephants. We ______ (take) many pictures and ______ (have)a lot of fun.14.Which of these is a type of tree?A. RoseB. PineC. DaisyD. Tulip15.Which of these is used to eat soup?A. KnifeB. SpoonC. ForkD. Plate16.How old are you?A. I am ten year.B. I am ten years olD.C. I ten years olD. D. I ten year olD.17.Which of these is a time of day?A. MorningB. ChairC. SpoonD. Table18.Which animal is called the "king of the jungle"?A. LionB. TigerC. ElephantD. Giraffe19.David is doing his homework. He needs to finish his __________ in the afternoon before going outside to play. His mother reminds him to check his __________ and make sure he writes everything neatly. After finishing his math __________, David can go outside to meet his __________ for a game of soccer. His teacher always tells him to finish his work __________ so he can enjoy his free time.20.My favorite subject is __________. I love it because it is very __________. We learn about __________, __________, and __________. I find it interesting to learn about the __________ of different countries. Our teacher is very __________ and explains things in a very __________ way. I always look forward to this lesson.21.Which animal can fly?A. FishB. DogC. BirdD. Lion22.Which one is a tool?A. ScrewdriverB. ChairC. TableD. Spoon23.I am getting ready for a trip to the mountains with my family. We will hike to the top and enjoy the beautiful view. I will bring a __ and some snacks for the hike. We will also take some pictures of the __.24.Which of these is a pet?A. DogB. ElephantC. LionD. Whale25.Every morning, I __________ (wake) up at 7:00. I __________ (brush) my teeth, __________ (eat) breakfast, and __________ (leave) the house at 8:00. I __________ (take) the bus to school. My school __________ (start) at 8:30, and I __________ (be) always on time. After school, I __________ (go) to the park to play with my friends.26.Which one is a body part?A. HandB. ChairC. TableD. Spoon27.Which of these is a fruit?A. AppleB. PotatoC. CucumberD. Carrot28.Emily is walking to the __________ with her friends. They are going to watch a__________ about space. Emily is very excited because she loves learning about__________. She also enjoys looking at the __________ in the sky. After the movie, they all go to a nearby __________ to get ice cream.29.Which is the correct way to say "我饿了" in English?A. I am thirsty.B. I am hungry.C. I am sleepy.D. I am happy.30.What do we use to clean our teeth?A. CombB. ToothbrushC. SpoonD. Knife31.What do you use to write?A. KnifeB. PenC. SpoonD. Plate32.Which sentence is correct?A. There are many books on the shelf.B. There is many books on the shelf.C. There are many book on the shelf.D. There is many book on the shelf.33.Which of these is a food?A. AppleB. TableC. ChairD. Television34.We ________ (be) at home yesterday.35.Which one is used to measure length?A. RulerB. SpoonC. PlateD. Fork36.I ______ (love) animals, and I ______ (want) to be a vet when I grow up. I ______ (have) two pets: a dog and a cat. My dog ______ (be) very playful, and my cat ______ (like) to sleep all day. They both ______ (be) very cute.37.I ______ (not like) to wake up early on weekends. I usually ______ (sleep) until 9:00 AM. After I ______ (wake) up, I ______ (eat) breakfast and ______ (watch) TV. My sister ______ (like) to wake up early, so she ______ (make) breakfast for us. We______ (eat) together in the kitchen. In the afternoon, I often ______ (play) outside with my friends.38.Which of these is a form of transportation?A. TableB. CarC. ShoeD. Hat39.We __________ (1) to the zoo last weekend. It __________ (2) a sunny day, so we __________ (3) many animals. We __________ (4) lions, tigers, and elephants. The lions __________ (5) very loud. After the zoo, we __________ (6) ice cream and __________ (7) to a park.40.What do you use to write?A. SpoonB. ForkC. PenD. Cupst Saturday, my family __________ (decide) to have a picnic in the park. We__________ (pack) a basket with sandwiches, fruits, and drinks. When we __________ (arrive) at the park, we __________ (find) a nice spot under a big tree. We __________ (spread) a blanket on the grass and __________ (sit) down. My little brother __________ (play) with a ball, and we __________ (enjoy) the sunny weather.42.My father _______ a car.43.Which one is a vegetable?A. LettuceB. BananaC. AppleD. Pear44.Can you ______ the book?A. SeeB. HearC. SpeakD. Write45.What is the opposite of "new"?A. SmallB. OldC. HeavyD. Light46.Which of these is a geometric shape?A. SquareB. TableC. PlateD. Chair47.My friends _______ very kind.48.They _______ my best friends.49.Which of these is a type of food?A. BreadB. ChairC. PlateD. Knife50.What do you use to write?A. PencilB. KnifeC. SpoonD. Chair (答案及解释)。
小学六年级上册G卷英语第四单元期中试卷(含答案含解析)
小学六年级上册英语第四单元期中试卷(含答案含解析)英语试题一、综合题(本题有50小题，每小题2分，共100分.每小题不选、错误，均不给分)1.He _______ a letter to his cousin last night.2.Which of the following is not a season?A. WinterB. SummerC. FallD. Breakfast3.What is the plural form of "cat"?A. catsB. catC. catesD. catties4.What is the opposite of "new"?A. OldB. HeavyC. SmallD. Tall5.Which one is used to clean your teeth?A. ToothbrushB. KnifeC. SpoonD. Plate6.Which one is a fruit?A. CarrotB. AppleC. CucumberD. Onion7.Which of these is a form of transportation?A. BookB. CarC. TreeD. Chair8.What color is an apple?A. GreenB. YellowC. RedD. Black9.Which of these is used to measure weight?A. ThermometerB. ScaleC. ClockD. Plate10.What is used to clean your teeth?A. KnifeB. ToothbrushC. ForkD. Plate11.Which of these is an insect?A. CatB. ButterflyC. DogD. Elephant12.Every weekend, my family ______ (visit) my grandparents. Last weekend, we______ (go) to their house and ______ (play) games. It ______ (be) a fun day!13.This winter, I ________ (buy) a new coat. It ________ (be) very warm and________ (keep) me comfortable on cold days. I ________ (wear) it every day when I________ (go) outside.14.Tim likes to go to the __________ (1) to buy food. His family needs to buy bread, __________ (2), __________ (3), and some __________ (4) for the week. Tim’s mother loves to cook __________ (5) for dinner. Tim also likes to help her __________ (6) the vegetables. After shopping, they go home and start cooking.15.Which one is a vegetable?A. BroccoliB. BananaC. AppleD. Pear16.We _______ a test next week.17.We ______ (celebrate) my grandmother’s birthday last weekend. We all ______ (gather) at her house and ______ (sing) birthday songs. My aunt ______ (bake) a delicious cake, and my uncle ______ (bring) some gifts. After the party, we all ______ (take) a group photo to remember the special day.18.Which one is a season?A. JanuaryB. SummerC. WednesdayD. January19.Which one is an animal?A. ElephantB. BookC. ChairD. Table20.I’m going to visit my grandparents this weekend. They live in the __. I love visiting them because they have a big __ where I can run and play. My grandmother always makes __ for lunch, and my grandfather likes to tell me stories. I feel very __ when I am with them.21.They ________ (not, like) coffee.22.I love __________. I usually go there with my __________ on weekends. We like to __________ on the __________ and __________. Sometimes, we bring a __________ and have a picnic. I enjoy the __________ there because it is very __________. After the picnic, we often __________ by the lake.23.I’m learning to play the piano. My teacher is very kind, and she teaches me new songs every week. So far, I’ve learned to play som e simple tunes, like "Twinkle Twinkle Little Star." I practice every day, and my fingers are getting faster. I hope to play more difficult songs in the future. Maybe one day, I will perform in front of an audience.24.Which one is a kind of fruit?A. AppleB. PotatoC. CarrotD. Onion25.Which of these is used to clean the floor?A. BroomB. ForkC. PlateD. Cup26.She _______ very fast.27.I __________ (play) the piano every day. I __________ (practice) my favorite song now. I __________ (feel) happy when I __________ (play) music.28.I __________ (1) to the market with my mother every Saturday. We __________ (2) buy fruits and vegetables. I __________ (3) like apples the most. After shopping, we__________ (4) go to the park for a walk. My mother __________ (5) bring a basket to carry the things.29.I __________ (1) my favorite book last night. It __________ (2) about a brave girl who __________ (3) on an adventure. I __________ (4) the story very much. I__________ (5) to read the next chapter tonight.30.What do you use to drink?A. SpoonB. KnifeC. PlateD. Cup31.We __________ (go) on a trip to the mountains last summer. We __________ (hike) for two days. The weather __________ (be) perfect, and we __________ (enjoy) the beautiful scenery.32.Which of these is a body part?A. LegB. ShoeC. TableD. Spoon33.Which one is a mode of transportation?A. BusB. PlateC. ForkD. Spoon34.Which of these is a body part?A. LegB. SpoonC. PlateD. Chair35.We ________ (have/has) a test on Friday.36.Every morning, I __________ (wake) up at 6:30 AM. I __________ (get) out of bed, __________ (brush) my teeth, and __________ (eat) breakfast. After that, I__________ (go) to school by bike.37.What do we use to write?A. PlateB. PencilC. KnifeD. Chair38.What do we use to write on a blackboard?A. ChalkB. PenC. CrayonD. Marker39.I _______ (be) very tired last night, so I went to bed early.40.Which one is a tool?A. HammerB. TableC. SpoonD. Plate41.Which of these is a part of the body?A. HandB. CarC. TableD. Chair42.Which of these animals is a mammal?A. BirdB. FishC. DogD. Fish43.We _______ (not, go) to school on Sunday.44.What is the opposite of "light"?A. DarkB. TallC. BigD. Slow45.What is the first meal of the day?A. DinnerB. LunchC. BreakfastD. Snack46.We _______ in a big house.47.Sally is baking cookies. She puts some __________ in the bowl and mixes it with __________. After shaping the dough into small balls, she places them on a __________. The cookies are __________ after baking.48.Lily is drawing a picture of a __________. She starts with a big __________ in the center. Then, she adds some __________ around it. Lily uses __________ colors to make her picture look bright and colorful.49.Which of these is a healthy food?A. CakeB. Ice creamC. AppleD. Chips50.My favorite season ______ (be) summer. I ______ (like) summer because it ______ (be) very warm, and I ______ (go) swimming every day. Last summer, I ______ (travel) to the beach with my family. We ______ (stay) in a hotel near the sea, and we ______ (have) a lot of fun.(答案及解释)。
24年小学四年级上册G卷英语第五单元真题试卷
24年小学四年级上册英语第五单元真题试卷考试时间：90分钟（总分:140）A卷考试人：_________题号一二三总分得分一、选择题(共计20题，共40分)1、What is the capital of Egypt?A. CairoB. AlexandriaC. LuxorD. Giza2、What is 10 3?A. 6B. 7C. 8D. 93、What is the capital city of Kyrgyzstan?A. BishkekB. OshC. Jalal-AbadD. Tokmok4、Which of these colors is a secondary color?A. BlueB. GreenC. RedD. Yellow5、What do we call a person who writes books?A. AuthorB. HistorianC. PoetD. Journalist6、选择题：What do you call an animal that can live both on land and in water?A. AquaticB. TerrestrialC. AmphibianD. Reptile7、What do we call the time when the sun sets?A. DawnB. DuskC. NoonD. Midnight8、What is the main purpose of a toothbrush?A. To wash handsB. To brush teethC. To comb hairD. To clean shoes9、Which word means "to run fast"?A. WalkB. JogC. SprintD. Stroll10、How do you say "goodbye" in German?A. AdiósB. Auf WiedersehenC. Au revoirD. Arrivederci11、Which number comes after 9?A. 8B. 10C. 11D. 1212、选择题：What do we call the process of water turning into vapor?A. EvaporationB. CondensationC. PrecipitationD. Sublimation13、How many players are on a handball team?A. 6B. 7C. 8D. 914、What is the capital of Germany?A. BerlinB. MunichC. FrankfurtD. Hamburg15、What is the name of the highest mountain in the world?A. K2B. EverestC. KilimanjaroD. Denali16、What is the capital of Colombia?A. BogotaB. CaracasC. QuitoD. Lima17、What is the name of the famous ancient structure in Rome?A. ColosseumB. PantheonC. Roman ForumD. All of the above18、What is the term for the effect of gravity on time?A. Time DilationB. Gravitational TimeC. Temporal DistortionD. Space-Time Continuum19、What is the primary ingredient in a traditional bagel?A. Rye flourB. Wheat flourC. CornmealD. Sourdough20、What is the name of the spacecraft that studied the outer planets?A. Voyager 1B. Voyager 2C. Pioneer 10D. New Horizons二、听力题(共计20题，共40分)The Earth's layers include the crust, mantle, and ______.2、听力题：A substance that forms ions in solution is called an ______.3、听力题：A compound that can act as both an acid and a base is called an ______.4、听力题：A ______ is a method of communicating scientific research.5、听力题：A __________ is a reaction that involves the combination of substances.6、听力题：The alligator swims in the ____.7、听力题：A _______ can help to measure the temperature of a solid object.8、听力题：__________ are substances that can conduct electricity when dissolved in water.9、听力题：I see a big __ in the sky. (bird)10、听力题：We have ___ (art/music) class soon.11、听力题：The _____ (花园) is blooming with flowers.12、听力题：The chemical symbol for nitrogen is _____.13、听力题：The molecular formula tells us the exact number of _____ in a molecule.14、听力题：A ball falls down because of ______ (gravity).15、听力题：The chemical formula for sodium acetate is ______.My ______ is a scientist who studies animals.17、听力题：The cat scratches its _____ post.18、听力题：The chemical symbol for iodine is ______.19、听力题：A substance that can change color based on pH is called a(n) _______ indicator.20、听力题：Light travels in straight ______.三、填空题(共计20题，共10分)1、填空题：The ancient Egyptians valued ________ as part of their culture.2、填空题：The dog is _______ (在叫).3、填空题：A __________ (花卉展览) showcases many varieties.4、填空题：I like to play with my ________ (玩具名称) every day.5、ts can grow in ______, while others prefer dry soil.(有些植物可以在潮湿的环境中生长，而另一些则喜欢干燥的土壤。
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七、 分）已知 RLC 电路， ui 为输入， u o 为输出，列写系统的状态方程和输出方程。 （8 L R
i
ui
C
u0
八、 （10 分）如图所示系统，在任何情况下，希望液面高度 C 维持不变，试说明系统工作原理并画出方框
图。
Q1
浮子 电位器
C
减速器
用水开关
M
电动机
if
Q2
九、 （15 分）负反馈控制系统的开环传递函数为 G ( s ) =
r (t )
T
K s (0.1s + 1)
c(t )
四、 （10 分）某系统结构图如图所示，其中给定输入 r (t ) = 1
t ≥ 0 ，扰动输入 f (t ) = 1 ， t ≥ 0 ，
f (t )
r (t )
K1 T1 s + 1
K2 s
若使系统在两个输入共同作用下的稳态误差为 0，应采取什么措施。
五、 （15 分）设单位负反馈系统的开环传递函数为 G0 ( s ) =
相角裕度 γ ≥ 45 ，试确定串联滞后校正装置的传递函数。
0
K ，要求静态速度误差系数 KV =100， s ( s + 25)
长春理工大学试题
考试科目 自动控制原理 专业 第 2 页/共 2 页
请考生将所有答案都答在考场上发的答题册上
长春理工大学试题
考试科目 自动控制原理 专业 第 1 页/共 2 页
请考生将所有答案都答在考场上发的答题册上
一、 （10 分）已知系统的结构图如图所示：
（1）当 K f = 0 、 K a = 10 时，求系统的阻尼比 ξ 和固有频率 ω n 。 （2）若使 ξ = 0.6 ，单位斜坡输入下系统的稳态误差 e ss = 0.2 ，求 K f 和 K a 。
K ( s 2 − 2 s + 5) 二、 （12 分）已知某单位负反馈系统的开环传递函数为 G ( s) = ，试绘制系统的根轨迹，并 ( s + 2)( s − 1)
确定系统稳定且有超调时增益 K 的取值。 三、 （13 分）设闭环离散系统如图所示，其中采样周期 T=0.1s,试求系统稳定时 K 的临界值。
六、 分）已知描述系统的状态空间模型为， （7
⎡ 0 1 0⎤ ⎡0 ⎤ x(t ) = ⎢ a 0 0 ⎥ x(t ) + ⎢1 ⎥ u (t ) ⎢ ⎥ ⎢ ⎥ ⎢ 0 0 0⎥ ⎢b ⎥ ⎣ ⎦ ⎣ ⎦
y (t ) = [ 0 c 1] x(t )
试确定系统状态可控、状态可观 a ， b ， c 应满足的条件。
统的稳定性。
100 ，试用奈氏判据判断闭环系 s (1 + 0.02 s )(1 + 0.2 s )