函数y=sinx+cosx的定义域是______. 发布时间:2017-04-21 06:43 │ 来源:www.tikuol.com 题型:填空题 问题: 函数y=sinx+cosx的定义域是______.
题型:填空题 My friends _______ some foreigners around the Century Park this time yesterday. [ ]A. is showingB. are showing C. was showingD. were showing 查看答案