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已知过点M(1,4)的直线与两坐标轴的正半轴交于

发布时间:2021-07-21

A.B两点,O为坐标原点,若http://picflow.koolearn.com/upload/papers/g02/20110914/201109141448260931031.gif,则四边形OACB周长的最小值等于 A.9

B.12

C.18

D.20

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