555定时器中含有（）个5K电阻。 A.0 B.1 C.2 D.3_爱下问搜题

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问题单项选择题

555定时器中含有（）个5K电阻。

A.0

B.1

C.2

D.3

答案

参考答案：D

选择题

of the students boys in our class.

A. One fifth; are
B. One fifths; are
C. First fifths; is
D. One five; is

名词解释

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