词汇。

l.  The Class Two runner _____ (落下)his stick on the ground.

2. In my  _____ (空闲的)time,I love playing football.

3. I like eating_____(土豆).

4. We shall come tomorrow if nothing_____(阻止).

5. The old fisherman went fishing_____(日复一日).

电压互感器的原理与变压器不尽相同，电压互感器的二次侧电压恒为100V。