a与b的和的4倍,用字母表示可以写成4a+b.______. 发布时间:2017-05-03 06:14 │ 来源:www.tikuol.com 题型:解答题 问题: a与b的和的4倍,用字母表示可以写成4a+b.______.
题型:解答题 With a good command of reading skills, most students can manage to read()as they could the year before.A.as twice fastB.as fast as twiceC.as twice as fastD.twice as fast 查看答案