夹具是先张法预应力砼施工的临时性锚固装置。()
参考答案:对
I________ a big house for my family if I _____ a lot of money.
A.would buy, have
B.would buy, had
C.will buy; had
D.will buy, will have
断路器分、合闸速度过高或过低对运行有什么危害?