手机维修过程中,电压测试经常运用,包括()。
A、电源输出电压是否正常
B、接收电路供电是否正常
C、发射电路供电是否正常
D、集成电路的供电是否正常
参考答案:A, B, C, D
--- What’s this _____ English?
--- It’s _____ English-Chinese dictionary.
A.in, an
B.by, a
C.in, a
D.by, an
He made no preparation for the job interview in advance, which might_____ his failure in it.
A.bring up
B.account for
C.contribute to
D.agree with