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若不等式组 http://picflow.koolearn.com/upload/papers/20140824/201408240005538191152.png表示的平面区域是一个直角三角形,则该直角三角形的面积是(   )

发布时间:2021-07-20

A.http://picflow.koolearn.com/upload/papers/20140824/20140824000553834318.png

B.http://picflow.koolearn.com/upload/papers/20140824/20140824000553850312.png

C.http://picflow.koolearn.com/upload/papers/20140824/20140824000553866327.png

D.http://picflow.koolearn.com/upload/papers/20140824/20140824000553834318.pnghttp://picflow.koolearn.com/upload/papers/20140824/20140824000553850312.png

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