不中断,无瞬变交流电源的输出设备有()。
A.蓄电池
B.UPS
C.开关电源
D.交流配电屏
参考答案:B
–Jack is good at maths and doesn’t perform well in English.
–_____.
A.It was the same with Mike
B.So it is with Mike
C.So is Mike
D.So does Mike