UPS运行中，蓄电池大电流放电的可能原因为（）。A、UPS负载变大

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问题多项选择题

UPS运行中，蓄电池大电流放电的可能原因为（）。

A、UPS负载变大

B、整流器故障

C、输入交流电停

D、逆变器故障

E、输入交流电回路故障

答案

参考答案：B, C, E

填空题

缺词填空。

Near my home there is a c___1___ shop. It sells clothes f___2___ people of d___3___ ages, for old people,

young people and children. You can f___4___ trousers, socks, coats, blouses, shirts, skirts, dresses, T-shirts

and hats there. Some clothes are very nice but e___5____. Some are c___6___ but not very nice. My mother

sometimes b___7___ me blouses or shoes there. There are not m___8___ people there on w___9___, but on

Sunday, there are l___10___ of people there.

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