一个长方形的长为a+2b,宽为a-b,这个长方形的周长为______. 发布时间:2017-05-20 19:24 │ 来源:www.tikuol.com 题型:填空题 问题: 一个长方形的长为a+2b,宽为a-b,这个长方形的周长为______.
题型:填空题 Jenny is so kind that she often _____ her toys with her friends.[ ]A. shows B. gives C. shares D. brings 查看答案
题型:填空题 The train leaves___6:00 pm, so I have to be at the station___5:40 pm at the latest? A.at; untilB.for; after C.at; byD.before; around 查看答案