【題目】It’s reported that at least 500 million people are using WeChat(微信) in China.

A.50.000 B.500,000

C.500,000,000 D.5,000

【答案】C

【解析】

試題分析:句意:據(jù)報道中國至少有500,000,000人在使用微信。1 million=1,000,000 所以500 million=1,000,000*500=500,000,000。故選C。

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