笔算425除以6等于?

郁闷数学题王英上山速度为x,按原路返回,速度为y,则王英上下山的平均速度为?过程!～我写的是（x＋y）／2可答案是2xy／（x＋y） 超郁闷的数学题甲乙两人赛跑,若乙先跑10米,则甲跑5秒钟就能追上乙；若乙先跑2秒钟,则甲跑4秒钟能追上乙. what is my name? My Name Is What? My name is G G G G baby baby My name is GDGD baby 求园方程求圆心在直线Y=-2X上,且与直线Y=1-X相切于点（2,-1）的圆的方程 .尽量说的详细 求下列的园的方程 圆过点（0,1）和（0,3）,半径为1 His coat is [biack and biue] 对括号内的短语提问 there red coat is (his).就括号部分提问 有没有关于摘葡萄的作文啊~（>_ what does is turning that experience into change for good所做的就是把经验永久地转化为钱. 以乐促学 ___ is unknown to others but you that I'll change another job.A what B It 摘葡萄的作文最好是写在家里摘的 帮我写篇摘葡萄的作文 400字左右 怎么地摘葡萄 17《安塞腰鼓》!“消化这红豆角老南瓜的躯体”表示什么它使你惊异于那农民衣着包裹着的躯体,那消化着红豆角角老南瓜的躯体,居然可以那么奇伟磅礴的能量!（“消化这红豆角老南瓜的躯 安塞腰鼓：1理解句子 （1)它使你惊异于那农民衣着包裹着的躯体,那消化着红豆角角老南瓜的躯体,居然可以那么奇伟磅礴的能量!（2）多水的江南是易碎的玻璃,在那儿,打不得这样的腰鼓 它使你惊异于那农民衣着包裹着的躯体,那消化着红豆角老南瓜的躯体,居然可以释放出那么奇伟磅礴的能量!解释一下 What's my name?What's my No.`Who is my lover? 它使你惊异于那农民衣着包裹的躯体,那消化着红豆角角老南瓜的躯体,居然可以释放出那么奇伟磅礴的能量!过着贫困生活的农民,那里来的那么强大的力量? Maby is my lover 什么意思 安塞腰鼓初中课文中“那消化着红豆角角老南瓜”中的“红豆角角”是为什么要这样说? this is my who is my lover 园心为(1,1),且过点(3,2)的园的方程是? 求以点C(-1,2)为园心,为5半径的园的方程. 园标准方程半径^2公式是?(x-a)^2+(y-b)^2=D^2+E^2-4F/分母是什么来这? Choose the best topic from A to F according to the meaning of the passage．1.Pick a topic and stick to it.Know how often to post.Keep it short.Find your own writing style.2.Never offer personal information on your blog.Be sure that anything you post Choose the best topic from A to F according to the meaning of the passage．中文 He loved best to choose themes from the simple life of thethe poor ____ trials and hardships he knew so well by bitter experience.答案是whose,可是我看不出这是定语从句,我发现whose引导的定语从句没有谓语? 为什么异花授粉比自花授粉更具优越性