如图所示,在平行四边形abcd中,dc平行ab,da垂直ab
也许感兴趣的知识
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it was ___music that i lost myself on it a.such a beautiful
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they won't hold the meeting until next Friday.They gave him
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成语“金蝉脱壳”,脱了壳的蝉是幼虫阶段还是成虫阶段?
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en.She is very busy,i want to help her .but I don't know ___
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月亮的上弦月出现在黄昏还是出现在黎明?
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事间灵异事件太多了,频频发生,非常困惑,
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化学反应的速率和限度均可通过改变化学反应条件而改变这句话对吗?
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as well as 的用法是什么?
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某旅游团要从8个风景点中选2个风景点作为当天的旅游地,求分别满足以下条件的选法的种数.
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level意思
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用KMnO4制取O2的文字表达式?
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数学问题Cos2x=?
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两瓶果汁共有3.6升,大瓶果汁喝掉0.9升后,大瓶里的果汁是小瓶里的1.5倍,大瓶里原来有果汁多少升?
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When i got into the calssroom.Peter and Jackson were______（a
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如图24甲所示,当开关S接a时,移动滑动变阻器的滑片P,根据测出的电流、电压值,画出了定值电阻R0的U—I图
