23. I’m not sure whether this kind of socket is available in this hardware shop. A. expensive B. acceptable C. useful D. obtainable ...
20. Andrew: I’m sorry to tell you that you failed the mid-term exam.Connie: __________ (expressing regret) A. Oh, no! What shall I do? B. That can’t be true! C. I wish it were not true. D. If only I had worked h...
14. This is the principal idea of Einstein’s theory. A. elementary B. primitive C. primary D. principle ...
11. Her necklace is very beautiful. It’s made of genuinepearls. A. precious B. real C. rare D. expensive ...
9. I’m nearsighted and the room is quite dark. Consequently I had great difficulties in finding the right button to turn on the light. A. Therefore B. However C. Otherwise D. In the end ...
2. Sally: I don’t think having a telephone in each dorm room is a good thing.Rita: ___________ (expressing an attitude to or opinion on what Sally says). A. Why don’t you think it’s a good thing? B. We didn’...
8. 设f(x)在(a, b)内可导,则f'(x)<0是f(x)在(a, b)内为减函数的( )。 A. 充分条件 B. 必要条件 C. 充分必要条件 D. 既非充分又非必要条件 ...
19. 第二次世界大战之后,提出“管理理论丛林”现象的管理学家是 A. 巴纳德 B. 孔茨 C. 卡斯特 D. 德鲁克 ...
46. 若<G,*>是一个群,则运算“*”一定满足()。 A. 交换律 B. 消去率 C. 幂等律 D. 分配率 ...
28. 设G=<V,E>为无向图(4,8),则G一定是()。 A. 完全图 B. 赋权图 C. 单图 D. 重图 ...