复数ii+1=( ) A.12+i2 B.12-i2 C.-12+i2 D.-12-i2 发布时间:2017-04-13 06:48 │ 来源:www.tikuol.com 题型:选择题 问题: 复数ii+1=( )A.12+i2B.12-i2C.-12+i2D.-12-i2
题型:选择题 We'll go for a walk if it ______ tomorrow.A. will not rain B. isn't rainingC. doesn't rain D. rains 查看答案