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第1题

如果发现触电者触电后当时已经没有呼吸或心跳, 就可以放弃抢救了。( )
·正确
·错误
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第2题

I often see ____ the road on his way home.
A.A. he cross
B.B. him cross
C.C. him crossed
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第3题

His mother ____ alone since his father died.
A.A. lived
B.B. lives
C.C. has lived
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第4题

在三相电路中, 流过每根端线的电流叫做线电流。 ( )
·正确
·错误
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