题目内容

It’s necessary to have some____ knowledge for this job.
A．electricB．electricalC．elctronD．electricity
B
词义辨析题。A. electric        形容词“带电的”         B. electrical     形容词“与电有关的C. elctron  名词“电子”         D. electricity 名词“电”句意：干这份工作掌握一些与电有关的只是是必要的。 根据语境选B
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