对于直线l:y=k(x+1)与抛物线C:y2=4x,k=±1是直线l与抛物线C有 发布时间:2017-04-09 17:18 │ 来源:www.tikuol.com 题型:选择题 问题: 对于直线l:y=k(x+1)与抛物线C:y2=4x,k=±1是直线l与抛物线C有唯一交点的( )条件.A.充分不必要B.必要不充分C.充要条件D.既不充分也不必要
题型:选择题 —How do you think I can make up with Johnson? —Set aside ______ you disagree and try to find ______ you have in common. [ ]A. what; what B. where; what C. what; which D. where; which 查看答案