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已知平面区域 http://picflow.koolearn.com/upload/papers/20140823/201408231632038311082.gif, http://picflow.koolearn.com/upload/papers/20140823/20140823163204065960.gif,向区域 http://picflow.koolearn.com/upload/papers/20140823/20140823163204267208.gif内随机投一点 http://picflow.koolearn.com/upload/papers/20140823/20140823163204283197.gif,点 http://picflow.koolearn.com/upload/papers/20140823/20140823163204283197.gif落在区域 http://picflow.koolearn.com/upload/papers/20140823/20140823163204330319.gif内的概率为( )

发布时间:2021-07-16

A.http://picflow.koolearn.com/upload/papers/20140823/20140823163204345210.gif

B.http://picflow.koolearn.com/upload/papers/20140823/20140823163204377216.gif

C.http://picflow.koolearn.com/upload/papers/20140823/20140823163204392213.gif

D.http://picflow.koolearn.com/upload/papers/20140823/20140823163204408219.gif

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