熔断器串联接在电路中,用以保护电气装置,使其过载和()电流通过时断开电路,以避免()。
参考答案:短路;损坏设备
句型转换。
1. It's time for supper. (同义句)
_______________________________________________________
2. She is often late for school. (反义句)
3. We are learning to fly a kite. (对划线部分提问)
4. I think you want to go home. (否定句)
5. Lucy, do your homework. (用now改句)
房屋新开工面积指整栋房屋的全部建筑面积,不能分割计算。()