The machine is unsafe because of the defects in it.

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问题 The machine is unsafe because of the defects in it.

选项 A、faults
B、tricks
C、mistakes
D、merits

答案A

解析 defect与fault同义，意为“缺点，不足之处，毛病，瑕疵”。trick“诡计，计谋，花招，骗术”；mistake“误解，误会，错误，过失”；merit“价值，长处，优点”。

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职称英语卫生类B级

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