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 Accordingtothecompanies'websites,thenumberofactiveQQus...

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問題詳情:

 Accordingtothecompanies'websites,thenumberofactiveQQus...

 According to the companies' websites, the number of active QQ users in China has reached 1 billion, while Qihoo 360 also claims _______ at least 300 million users before June 2010.

A. to have   B. to have had      C. having     D. having had


【回答】

B

知識點:非謂語動詞

題型:選擇題

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