如果用额定电压高的兆欧表去测量低压绝缘可能把()击穿。
A、电器线缆
B、绝缘
C、兆欧表
参考答案:B
Nowadays teachers tend to be more dependent on ________ is thought to be a great teaching aid—the computer.
A.that
B.which
C.what
D.as
电子书包的课堂里师生关系应该是学生主导的。