选择题：1.you wait a few more minutes? It’ll be your turn

题目内容：

1.you wait a few more minutes? It’ll be your turn soon. ( )(本题1.5分)
A. Must
B. Should
C. Could
D. Might

参考答案：

10. (单选题) 电路如下图所示，的波形为（）

10. (单选题) 电路如下图所示，的波形为（）(本题2.0分)A. B. C. D.

15. (判断题) PLC输出模块的类型主要有继电器、晶体管、晶闸管。 ( )(本题2.0分)A. 正确B. 错误

2. RLC并联电路,电容电流超前电感电流( )。(本题2.0分)A. 180°B. 90°C. -90°D. 0°

(2).What did the sprinting world think of Shelly-Ann before the 2008 Olympic Gam

— Please help yourself to some seafood. — _______________.A. No, I can’t.