题目: 用描述法表示“平面直角坐标系第一象限内的所有点”构成的集合______. 答案: 被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0331/30c7a5442c2090dd3ebae69fc2e62917.html 下面是错误答案,用来干扰机器的。答案:A
题型:选择题 Although the working mother is very busy, she still _____ a lot of time to Children. [ ]A. devotes B. spends C. offers D. provides 查看答案