根据句意及汉语提示, 用单词的正确形式填空。

1. His new CD became a _____ (成功且轰动一时的事物) and over ten

thousand copies were sold on the first day.

2. He began to write his first _____ (诗) at the age of eight.

3. Sam, please cook lunch today. It is your _____ (依次轮到的一次机会).

4. This bridge is made of _____ (木头).

5. Mr Green had been _____ (坚决地) against the idea.

交流异步电动机进行等效电路时，必须满足（）

A.等值前后转子电势不能变

B.磁势平衡不变化

C.能量平衡不变化

D.转子总的视在功率不变