已知x2+x-1=0,则x3+2x2+2011=______. 发布时间:2017-05-11 11:53 │ 来源:www.tikuol.com 题型:填空题 问题: 已知x2+x-1=0,则x3+2x2+2011=______.
题型:填空题 —Why don’t you go out to play, Rose? —I’m afraid I can’t. I have much homework _________.A.doB.doesC.doingD.to do 查看答案