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http://picflow.koolearn.com/upload/papers/20140824/20140824005700488300.png为不等式组 http://picflow.koolearn.com/upload/papers/20140824/20140824005700503939.png表示的平面区域,当 http://picflow.koolearn.com/upload/papers/20140824/20140824005700535283.pnghttp://picflow.koolearn.com/upload/papers/20140824/20140824005700550222.png连续变化到 http://picflow.koolearn.com/upload/papers/20140824/20140824005700550208.png时,动直线 http://picflow.koolearn.com/upload/papers/20140824/20140824005700566493.png扫过 http://picflow.koolearn.com/upload/papers/20140824/20140824005700488300.png中的那部分区域的面积为(   )

发布时间:2021-07-20

A.http://picflow.koolearn.com/upload/papers/20140824/20140824005700613387.png

B.http://picflow.koolearn.com/upload/papers/20140824/20140824005700628354.png

C.http://picflow.koolearn.com/upload/papers/20140824/20140824005700644377.png

D.http://picflow.koolearn.com/upload/papers/20140824/20140824005700862291.png

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