指数函数y=ax，当x＞1（或x＜-1）时，恒有y＞2，则a的取值范围是____ 发布时间：2017-05-03 06:18 │ 来源：www.tikuol.com 题型：填空题 问题： 指数函数y=ax，当x＞1（或x＜-1）时，恒有y＞2，则a的取值范围是______．
题型：填空题 We must do something to stop people from ______.A. to throw litter about B. to throw litter into C. throwing litter about D. throwing litter into 查看答案