题目

如图,不能作为判断AB∥CD的条件是(        ) ­   A.∠FEB=∠ECD­­      B.∠AEC=∠ECD;    C.∠BEC+∠ECD=180°    ­D.∠AEG=∠DCH ­ 答案:D Between the two generations, it is often not their age,     their education that causes misunderstanding.? A.like        B.as           C.or       D.but  
数学 试题推荐