在电力电容器组和电源接通后的很短的时间里，流过电容器的电流称为（）
A.励磁涌流
B.励磁电流
C.合闸涌流
D.合闸电流
参考答案：C
一个圆的直径是1Ocm，它的周长是______cm．面积是______cm2．
Born into a family with three brothers and two sisters, Peter was to value the sense of sharing. [ ]
A. brought up
B. turned down
C. looked after
D. held back
