(x+1)4的展开式中x3的系数是______. 发布时间:2017-05-16 21:13 │ 来源:www.tikuol.com 题型:填空题 问题: (x+1)4的展开式中x3的系数是______.
题型:填空题 —___John come here tonight?—I’m not sure, but he ______ stay at home.A.May, mightB.Can, mustC.Must, mightD.Can, might 查看答案