The employees should insert the copy paper gently to______the life of the photocopier.

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问题 The employees should insert the copy paper gently to______the life of the photocopier.

选项 A、enlarge
B、persist
C、endure
D、prolong

答案D

解析 词汇:动词1.这是一道词汇题,选项均为动词。2.原文意为“延长复印机的寿命”,因而(D)prolong为正确选项。3.enlarge意为“扩大”,在本题中与动词不搭配。
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