YaoganFour,________onDec2nd,2008,

发布时间：2020-07-27 14:43:03

Yaogan Four, ________ on Dec 2nd, 2008, is the 113th launch for China’s carrier series of Long March rockets．A.has been launchedB.having been launchedC.being launchedD.to be launched

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B
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