下列计算正确的是[ ] A.a3﹣a=a2 B.(﹣2a)2=4a2 C.x3× 发布时间:2017-05-05 23:09 │ 来源:www.tikuol.com 题型:选择题 问题: 下列计算正确的是[ ]A.a3﹣a=a2B.(﹣2a)2=4a2C.x3×x﹣2=x﹣6D.x6÷x2=x3
题型:选择题 选一选。1. 见到你我也很高兴。[ ]A. Nice to meet you.B. Nice to meet you, to.C. Nice to meet you, too.2. 下午好![ ]A. Good morning!B. Good after noon!C. Good afternoon!3.你的手在哪里? [ ]A. Where are your hand?B. Where are your eyes?C. Where is your body? 查看答案