中小容量的高压电容器组如配置延时电流速断保护,动作时限可取(),以便避开电容器的合闸涌流。
A、0.1s
B、0.2s
C、0.3s
D、0.4s
参考答案:B
There will be lecture (演讲) in half an hour.The meeting room with people.
A.is full
B.is crowded
C.crowded
D.full
编制( )是会计核算工作的起点。
A.记账凭证 B.原始凭证C.基本凭证 D.单式凭证