It is bad manners to ______people when they are speaking.
A.interview
B.intimate
C.interfere
D.interrupt
第3题
A.空气压缩机电动机MA19、MA20
B.主变压器油泵MA21、MA22
C.司机室空调EV11、EV12
D.主变流器内部的水泵WP1、WP2
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