变压器的输出侧容量与输入侧容量之比称为变压器效率。
参考答案:错
Did Wu Yifan go fishing?[ ]
A. Yes, he did.
B. No, she didn't.
C. Yes, she didn't.
应该在括号里填什么词语最合适?
1.小槐米( )随风飘动。
2.孩子们用( )钩刀( )削着槐米。