(7/5+5/7)×7/8
=74/35×7/5
=74/25
猜你喜欢
- 1呼吸作用在细胞的哪个结构进行?
- 2初二课文《藤野先生》中作者是怎样一个人?
- 3a,b,c,d是四个不同的非0数字,abcd这个四位数是13的倍数,bcda是11的倍数,cdab是9的倍数,dabc是7的倍数.问a,b,c,d各是多少?
- 4直线x y 根号2=0截圆x方 y方=4所得劣弧所对圆心角为
- 5Chat with his friends on the internet is his hobby .(找出错误)
- 6He often helps people on his work
- 7there are some pictures in my bag同义句
- 8一尺等于多少cm?
- 9改成夸张句:小明太瘦了,胳膊太细了.
- 10有两个大小恒定的力,作用在一点上,当两力同时,合力为A 反向时合理为B,当两个力互相垂直,其合力大小为