榆林到太原高铁:数学奥赛！~Give me the answers!

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http://dlsanghujun.fotolog.com.cn/1039764.html （ 图的地址）△ABC中点D在AB上试画出直线过点D并把三角形的面积平分。说明理由~~！！！

连接CD，底和高相等，面积相等。

那个D没有说是什么点么？是重点还是几比几的点啊？

数学奥赛！~Give me the answers! The treasure I like you not wanting to give up you give me an opportun give the book to me. give me the creeps 是什么意思 give me the creeps 是什么意思 who can give me the product key? please give me an order of scrombied eggs怎么翻译? Help:Can you give me an English passage about food? give me an english name which contian'婷' who can give me an overview of china?