Infig.1,let beanequilateraltriangle,DandEbepointsonedge...

问题详情：

In fig. 1, let  be an equilateral triangle, D and E be points on edges AB and AC respectively, F be intersection of segments BE and CD, and , then the magnitude relation between Ad and CE is （    ）

  A.   B.   C.   D. indefinite

  （英汉词典：equilateral等边的；intersection交点；magnitude大小，量；indefinite不确定的）

【回答】

 C   

知识点：数学竞赛

题型：选择题