Why did Andy Warhol name his work place "The Factory"().

A.Because he was able to make big profits out of his work.

B.Because he thought he was working like a garage mechanic.

C.Because he wanted to compare his own career to ordinary jobs.

D.Because he repeated many images of the same thing in his work.

中频变压器，主要用于（）。

A．中频淬火

B．对金属感应加热

C．通风良好的煤矿井口

D．船舶照明