分数相除怎么计算

Scientists think that some parts of our brains can grow stronger if we use them a lot.For example,they found that parts of a taxi driver's brain got stronger because he had to memorize all the streets in a city!However,if we do not use our memory reg give sb a lift是什么意思 关于‘Requirements for online courses are not less than those of any quality program.'Requirements为复数但后面为什么用less 而不用fewer? 人应该务实呢,还是奔着理想前进? Requirements for online courses are more than those of any other quality program. 有时候安逸的生活是不是也容易造成人对生活的散漫、缺乏信心、木有目标、前进的动力. [转]怎样形成自己的目标——你想成为什么样的人? expose 的用法 expose的用法和例句 “ You once said that you liked me,just me,just as I am.”是什么意思? rain和rainy的不同之处?举几个例子, 英语短语fighting with teeth and 什么时候用rain,什么时候用rainy 人要没钱是不是只有打工啦 用them,some,travel,air,by,of拼成一句话 The mass of the Great Pyramid is 557t greater than that of the Leaning Tower of Pise.Stone Hengehas a mass of 2695t which is 95t less than the Leaning Tower of Pisa.There once was a Greater Pyramid.What was the mass of the Greater Pyramid? He said to me 用it和be的不同形式填空 __________said that he has been in hospital for 3 weeks请问这题如果填 it has been可以吗？ 英语翻译 She is a good woman,___is known to us all. Is it a picture( ) your school?A.of B.to C.and d.with 池塘诱捕水蛇,青蛙蛇我池塘的泥鳅被咬伤,怀疑是蛇咬的.想把池塘的蛇除尽以杜绝隐患.请指点一个诱捕蛇的方法! 连词成句your don't trade you book friends with why your(?) what do you want?( 同义句)What _______you_______. 注意一下标点,最后是句号! it rains a lot here.it is always rainy and h____ uncle wang is good at ‘make’ toy plans这里的‘make’要用什么形式?题目重新写一遍 Uncle wang is good at ‘make’ toy planes 英语翻译如题. "自己的爱,明明有对象却给不了"这句话谁能帮我翻译成英文? 英语翻译I have been advancing towards the goal. 请懂德语的朋友帮忙看看,大概翻译介绍下这瓶药的说明,谢谢哦!这药有没有什么具体功效,谁能介绍下 ? why does li lei like koalas?Because they are ___________interestingA A BIT OF B KIND OF C A KIND OF D A FEW 如何交到pen pal from English-speaking countries我使用过msn的交友网,无奈,水平不够高,看不懂 臧克家在有的人一诗中说：“有的人活着,他已经死了；有的人死了人,他还活着.”你还能举出一个事例么?