题目已知线段AB=10cmAB=10cmAB=10cm,点CCC在线段ABABAB上,AC=4cmAC=4cmAC=4cm,点MMM是线段BCBCBC的中点,则线段AMAMAM的长( )A.7cm7cm7cmB.6cm6cm6cmC.5cm5cm5cmD.4cm4cm4cm知识点:比较线段的长短章节:未标注