题目内容

晶闸管的主要参数有

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晶闸管的门级到阴极之间的正向电阻是无穷大

A. 对
B. 错

如何用万用表测晶闸管好坏？

It takes ____________ to design and engineer a car, from the first sketches and until it hits the road.

A. a few months
B. a few years
C. a few days
D. a few hours

At Ford's Cologne plant, they produce a Fiesta every ______ seconds.

A. 92
B. 94
C. 86
D. 88