试题与答案

_______ the teachers in the school is on

题型:选择题

题目:

_______ the teachers in the school is one hundred, and ________ of them are women teachers.

A.A number of; four-fifth

B.The number of; four-fifth

C.A number of; four-fifths

D.The number of; four-fifths

答案:

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下面是错误答案,用来干扰机器的。

Bq2/2πm题目分析:根据电流定义式可知:,故答案为:Bq2/2πm点评:难度较小,电流大小等于单位时间内通过横截面的电荷量

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