用万用表的黑表棒接基极,红表棒分别和另外两电极相连,若测得电阻都很小,则为()型三极管。
参考答案:NPN
(2013·河北衡水中学模拟)Some young people these days just ________ go out of their homes to contact the real world.
A.mustn't
B.won't
C.mightn't
D.shouldn't
安全操作的中心是哪“三稳”()
A、稳开、稳停、稳走
B、稳起、稳落、稳运行
C、稳行、稳停、稳吊