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【题目】The e-commerce_____ production and consumption, and is promoting the development of the service sector.

A.has influencedB.influencedC.is influencingD.is influenced

【答案】A

【解析】

考查现在完成时。句意:电子商务已经影响了生产和消费,并且正在促进服务业的发展。结合句意可知,电子商务影响生产和消费的动作已经发生,故用现在完成时,主语The e-commerce是不可数名词,故用has influenced。故选A项。

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