题目内容

2

A. For two hours.
B. For two hours and a half.
C. For three hours.
D. For three hours and a half.

查看答案

搜索结果不匹配？点我反馈

更多问题

4

A. Excellent.
B. Just so-so.
C. Very bad.
D. Fine.

6

A. Very happy.
B. Very funny.
C. Very excited.
D. He didn’t enjoy himself at all.

8

A. He has a fever.
B. He is not strong enough.
C. He has a headache.
D. As long as he wants.

换路瞬间只有电容上的电压和电感中的电流不能发生跃变，其它各电量都可发生跃变

A. 对
B. 错