1 . 如图,在平行四边形
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c111d5a903b52527055ea440d3490fc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15173be9011cf7a3b371613c7547b13e.png)
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2020-01-10更新
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7卷引用:河北省邯郸市2019-2020学年高三上学期期末考试数学(文)试题
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C.![]() | D.![]() |