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如图,在△ABC中,AB<AC,按以下步骤作图:分别以点A和点C为圆心,大于AC一半的长为半径作圆弧,两弧相交于点M和点N,作直线MN交BC于点D;连结AD.若∠B=55°,∠C=30°,则∠BAD...
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教案备课库《2017年长春市中考综合学习评价与检测数学试卷(六)》真题及答案
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