(单选题)8: 对某边观测4测回，观测中误差为±2cm，则算术平均值的中误差为( )。 A: ±0.5cm B: ±1cm C: ±4cm D: ±2cm ...

(判断题)21: 粗略整平就是转动脚螺旋使管准器气泡居中，使仪器竖轴竖直。（ ） A: 错误 B: 正确 ...

(单选题)21:  My husband lived at home before we were married, and so______. A: did I B: had I C: I had D: I did ...

(单选题)16:  Jessica: I got home very late last night. I hope I didn't disturb you.Landlady:______, A: No. I heard a lot of noise B: Yes, I didn't hear any noise C: Yes. I didn't hear you D: No. I didn't hear a thing ...

(单选题)4: Thomas: Hey, you look concerned.______Jack: The final exam. I'm not fully prepared yet.  A: What a lovely day! B: What has attracted you? C: What's on your mind? D:  What about seeing the doctor? ...

(单选题)12:  Throughout their history, Americans have been people______ the move. A:  in B: on C: to D:  with ...

(单选题)13:  Adam: Mmm….. This is the best pudding I've ever had!Celia: ________ I know you'd like it. A: Didn't't I tell you? B: Did I say it right? C: Is what I said right? D: What did I say? ...

(单选题)1:  Richard：You've given us a wonderful Chinese dinner， Mrs. Liu. Mrs. Liu：______ A: I'm glad you enjoyed it. B: Oh，I'm afraid I didn't cook very well. C: Come again when you are free. D: It's not necessary for you to ...

(单选题)20:  Maria: Morley, where are the cookies. Don't tell me you ate them all!Morley: Yes, I did. _________ .  A: I couldn't bear it. B: They were too good to eat C: I couldn't help it. D: They were good to eat ...

(单选题)2:  Do not express shock for what you hear ______ matter how shocking it might seem. A: not B: never C: no D: none ...