下列运算正确的是[ ] A.x5-x3=x2 B.x4(x3)2=x10 C.( 发布时间:2017-05-06 00:29 │ 来源:www.tikuol.com 题型:选择题 问题: 下列运算正确的是[ ]A.x5-x3=x2B.x4(x3)2=x10C.(-x12)÷(-x3)=x9D.(-2x)2x-3=8
题型:选择题 ________ excited Geoff Marcy most was whether there were planets in other solar system where life might exist. A.ItB.ThatC.What D.Why 查看答案