测量电流、电压时,“万用表”应如何与负载连接()。
A、串联
B、串联、并联
C、串并联
D、并联
参考答案:B
If you go by _________train, you can have quite a comfortable journey, but make sure that you get_fast one.
A.the; the
B./; a
C.the; a
D./; /
人不犯我,我不犯人。