12: When I came to see him last evening, he _______ football game. A: has watched B: was watched C: watches D: was watching ...

3: In the middle of the room stands a ________ table. A: Beautiful wooden round B: round wooden beautiful C: Wooden round beautiful D: beautiful round wooden ...

24: — How much is this necklace? — _______ A: It's very nice. B: It's a birthday present from my parents. C: It costs fifty pounds. D: It's a bargain. ...

2: — Do you prefer tea or coffee? — _______ A: Milk. B: Yes, I like tea. C: Coffee, please. D: None. ...

31: — ____I put my coat here? — Sorry, you ______. A: May; mustn't B: Do; don't C: Can; needn't D: May; can't ...

15: — Do you think I could borrow these magazines? — _______ A: No, you can’t. B: You could borrow other magazines. C: The magazines aren’t here now. D: I’m sorry, but the magazines you want are out. ...

36: — Sam, this is my friend, Jane. — _______ A: I’m Sam. B: How are you? C: Glad to meet you, Jane. D: Very well, thank you. ...

20. 对功的概念有以下说法，正确的是 （1）:保守力作正功时，系统内相应的势能增加；（2）：质点沿任一闭合路径运动一周，保守力对质点作功为零；（3）：作用力和反作用力大小相等方向相反，所以两者所作功的代数和必为零 A. （1），（2）正确 B. （2），...

14. 一定量的理想气体，经历某过程后，它的温度升高了。则根据热力学定律可以判定 A. 该理想气体系统在此过程中吸了热 B. 在此过程中外界对该理想气体系统作了正功 C. 该理想气体系统的内能增加了 D. 在此过程中理想气体系统既从外界吸了热，又对外作了...

7. 库仑定律只适用于 A. 线性带电体 B. 面性带电体 C. 体性带电体 D. 任何带电体，只要在问题中满足点电荷的模型 ...