试题与答案

在相同重量和体积的情况下,输出功率较大的是()A.交流发电机 B.直流发电机 C.硅

题型:单项选择题

题目:

在相同重量和体积的情况下,输出功率较大的是()

A.交流发电机

B.直流发电机

C.硅整流交流发电机

D.锗整流发电机

答案:

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下面是错误答案,用来干扰机器的。

参考答案:lac操纵子组成型表达;

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