交流接触器不能用来（）

A.频繁操作

B.切断短路电流

C.切断过负荷电流

D.切断空载电流

—Do you think there is going to be a car that can run in the sea?

— ______. I think we can go to America by car.[ ]

    A. I'm afraid not                            

    B. Yes, there is going to be

    C. I hope not                                

    D. I think possible