弹簧劲度系数

求英语大神,第二大题 就是快捷英语,名校特训 阅读理解与完形填空八年级上第三版的8页,如果有答案的话,请麻烦传上来（8~14,和6） ,满意重赏 1）When the speaker asked a question,the listeners all sat .No one seemed to be in the mood for (有心情)an answer.（2）When I looked out of the window for the person who broke the window,all the boys who were playing soccer a moment ago 1到6题, A fearless bicycle rider announces that he will jump theBeaver River Canyon.If he does not use a ramp,but sim-ply launches himself horizontally,is there any way that hecan succeed?Why? 两题 he is hard to___A.deal with B.do with C.meet with D.go with their room的be动词the woman in yellow is my mother.疑问句和肯定否定回答the little girl is three years old.疑问句和肯定否定回答i am good at drawing.疑问句和肯定否定回答the green lites are in the sky.疑问句和肯定 句型转换1.There are no students in the classroom.同义句There are ( ) ( ) students in the classroom.完形填空（选择）1.Welcome to the Garden District.It's a good ( ) to have a good time.a.street b.place c.library d.bank2.If you are hungr 英语 4题 英语第4题 4题英语题 第4题英语 上面所有题/英语大神帮我一下/一定采纳! 英语大神帮我一下/一定采纳!(2题) 哪位大神帮忙做下英语题,在线等,做对直接采纳 适合小孩唱的经典英文歌最好是节奏感比较明快一点的··谢谢·· 简单易唱的儿童英文歌曲很容易学会的. 谁知道有简单又好唱的儿童英文歌曲?要两首! 要一手超简单的英文歌,适合12岁小孩能唱下来的 有什么适合儿童唱的英文歌曲?短一点的.短一点,要好听的,简单一点的,不要雪绒花. 谁能介绍我几首适合儿童唱的英文歌曲?要歌词简单容易背住的,又有点流行的哈不要a big big world 有什么适合少年唱的英文歌曲?最好附歌词～ 有谁有适合9岁小孩唱的英文歌不要太复杂.参加比赛用.这个很好.不过,还有没有别的了,这个去年比赛的时候已经有人唱了.不好意思, 适合儿童唱的英文歌求几首好听的的儿童英文歌,适合9～11岁儿童唱的,不要太大,难度适中,也不要像ABC儿歌一样. 有哪些适合10~12岁学英语的孩子唱的英文歌?请带上歌词,有急用! 适合12岁儿童表演的英文歌曲 21题. 设随机变量X只取两个值a、b,a 求大神解答16和21题 概率大神,求解答14 15题 设某仪器由两个部件构成,X与Y分别是这两个部件的寿命,已知（X,Y）的联合分布函数为：F(x,y)=1-exp{-0.5x} - exp{-0.5y} + exp{-0.5(x+y)} x>=0,y>=0F(x,y) = 0; 其他问X与Y是否相互独立?求两部件的寿