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【题目】E-mail, as well as telephones, __________ an important role in daily communication.

A. played B. is playing

C. are playing D. play

【答案】B

【解析】句意:电子邮件和电话,在日常交流中发挥了重要作用。as well as telephones修饰主语E-mail,谓语动词用单数。

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