题目

A study shows that students living in non-smoking dormitories are less likely to ____ the habit of smoking. A. make up         B. turn up     C. draw up        D. pick up 答案：D 解析: 略函数f（x）=ax+1+1（a＞0且a≠1）的图象恒过定点A，且点A在直线l：bx+y+1=0上，则直线l的方程是________．