词汇过关练习题及答案精解连载(九)
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词汇过关练习题及答案精解连载(九)
1. As a defense against air-pollution damage, many plants and animals_________ a substance to absorb harmful chemicals. A. relieve B. release C. dismiss D. disclose
2. As a matter of rule, the scrap value of a vessel can hardly be at ________ with the sound value. A. par B. bearish C. collapse D. rally
3. As a salesman, he works on a (an) ________ basis, taking 10% of everything he sells. A. income B. commission C. salary D. pension
4. As all of us know, color-blind people often find it difficult to ________ between blue and green. A. separate B. distinguish C. compare D. contrast
5. As everyone knows, the exchange ________ fluctuates almost daily. A. ration B. ratio C. rate D. interest6 As far as the rank of position is concerned, an associate professor is ________to a professor, though they are almost equally knowledgeable. A. attached B. subsidiary C. previous D. inferior7. As I was just getting familiar with this job, 1 had_________ to ask my boss. A. many B. most C. much D. more8. As is well-known, knowledge is the __________condition for expansion of mind. A. indispensable B. indefinite C. inevitable D. impossible9. As scheduled, the communications satellite went into _________ round the earth. A. circle B. orbit C. path D. course10. As soon as it started to rain we turned round and _________ home. A. made for B. called for C. cared for D. searched for123下一页