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问题 单项选择题

等电位操作人员在接触或脱离导线瞬间，有（）电流通过人体。

A.电感电流

B.雷电流

C.感应电流

D.电容电流

答案

参考答案：D

选择题
She _____ on a new novel ever since this summer and it is supposed to _____ at the beginning of 2011.

A. had worked; be published
B. had been working; have published
C. has worked; publish
D. has been working; be published
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判断题

每一种商品都能明确地、准确地归入一个H.S编码的品目号下。（ ）

集装箱号/铅封号是“MBLU4459040/771126”。（）
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