GRE 求教

GRE 求教

题目
GRE 求教
The fabric needed to make 3 curtains sells for $8.00 per yard and can be
purchased only by the full yard.If the length of fabric required for each
curtain is 1.6 yards and all of the fabric is purchased as a single length,
what is the total cost of the fabric that needs to be purchased for the 3
curtains?
题我知道怎么做,只是想问下 第一句末尾 purchased only by the full yard 他和第二句的末尾的 fabric is purchased as a single length 是不是重复了?
答案
不重复 第一句意思是只能买整的长度 第二句是三条窗帘由一块布做成 我的理解哈
举一反三
已知函数f(x)=x,g(x)=alnx,a∈R.若曲线y=f(x)与曲线y=g(x)相交,且在交点处有相同的切线,求a的值和该切线方程.
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
奥巴马演讲不用看稿子.为什么中国领导演讲要看?
想找英语初三上学期的首字母填空练习……
英语翻译
最新试题
热门考点

超级试练试题库

© 2017-2019 超级试练试题库,All Rights Reserved.