先化简,再求值:x2-2xx2-1÷(x-1-2x-1x+1),其中x=12. 发布时间:2017-05-25 07:03 │ 来源:www.tikuol.com 题型:解答题 问题: 先化简,再求值:x2-2xx2-1÷(x-1-2x-1x+1),其中x=12.
题型:解答题 —Henry doesn’t seem like the same person.— so much in the war has made him more thoughtful.A.For him to seeB.His seeingC.Having seenD.To be seeing 查看答案