问题描述：
英语翻译
The composite circuit has the polarity of a pnp transistor with the gain of an npn transistor.这句话怎么翻译?
The composite circuit has the polarity of a pnp transistor with the gain of an npn transistor.这句话怎么翻译?
问题解答：
我来补答展开全文阅读