测量法是信号工工作中用来准确确定故障点的有效的检查方法。常用的测试工具和仪表有()。
A、校验灯
B、测电笔
C、万用表
D、钳形电流表
E、兆欧表
参考答案:A, B, C, D, E
使用相位表时,电压不得超过额定值的(),电流不应小于额定值的()。
She's the equal of her brother________intelligence is concerned,but she doesn't work hard at all. [ ]
A. as well as
B. as soon as
C. as far as
D. as long as