题目

 如图，河坝横断面迎水坡AB的坡比是（坡比是坡面的铅直高度BC与水平宽度AC之比），坝高BC=3m，则坡面AB的长度是 A. 9m             B. 6m             C. m         D. m 答案：BMarry is not interested in study because she is ________ TV soap operas. [　　] A．addicting toB．addicted to C．addicting forD．addicted for