过抛物线y2=4x的焦点作直线l交抛物线于A、B两点,若线段AB中点的横坐标为3 发布时间:2017-04-30 04:19 │ 来源:www.tikuol.com 题型:选择题 问题: 过抛物线y2=4x的焦点作直线l交抛物线于A、B两点,若线段AB中点的横坐标为3,则|AB|等于( )A.10 B.8 C.6 D.4
题型:选择题 Have you considered how weak humans are a volcano, hurricane or earthquake?A.comparing withB.compared withC.to compare withD.having been compared with 查看答案