北师大版五年级语文走遍天下书为侣预

请解释为什么助跑跳远要比立定跳远跳得更远（物理题） 1+2-3-4+5+6-7-8+9+……+2005+2006-2007-2008+2009+2010巧算 My mother usually gets up at around 5:00 am.的同义句是什么 如图在三角形ABC中,AB=AC,AC与AB边上的高BE与CD相交与点O.求证BE=CD和OB=OC 坚持不懈的近义词4个 坚持的近义词是什么 中学生初二立定跳远技巧我是初二的一名女同学 现在还剩一周的时间 6月2号就考试了 w我现在带着沙袋 脱下能跳到180 优秀是189 能快速 有什么技巧 让我能优秀吗? ~~~~(>_ 坚持不懈的近义词20个20个急! 坚持不懈近义词 要两个 初二立定跳远、我们明天开运动会了我被逼去跳远的 因为其他名额都没了我13岁.不经常跳.可以说是很少跳我一般跳1.9M 不知道还能不能上升?咱升高将近1.6M、初二女生一般跳多少才算好? 已知数列{an}的前n项和Sn=n^2-12n,求数列{│an│}的前n项和Tn 已知数列an的前n项和Sn=12n-n²,（1）求an（2）求数列{│an│}的前n项和Tn. I usually get up at 6:00 am on w( ),but late on weekends I usually get up (at 6:30) 就划线部分提问____ _____ _____ you usually get up?记得是三个空哦 汉语演讲比赛是什么时候?英语翻译 --When do you usually get up ever day?--_____about 6:00 am She is ofen late for school.中的IS能不能省?I am usually get up at six.中的AM是不是错的? 演讲比赛什么时候开始?翻译 设数列{an}的前n项和为Sn=3n^2-65n 求数列{IanI}的前n项和 Tn 已知数列{an}的前n项和n满足Sn=n^2-14n令Tn=Ia1I+Ia2I+Ia3I+…+IanI求Tn 已知数列{an}的前n项的和为Sn,Sn=10^n-n^2求(1)an通项公式.(2)j记数列bn=IanI,求{bn}的前n项的和Tn 键盘里橡胶垫是什么聚合物做的? Love to drink wine,originally is smiling we advise him not to drink more wine_____is good to his health.a.that b.as c.than d.so选c的话请帮我翻译下意思好吗 [ ] should not be allowed to drink wineA ten-year- old B ten-years-old C ten-year -olds D ten-years-olds I usually take a shower at five am .对at five am 提问 The workers are making such a loud noise that I can't do my homeworknoise不是不可数名词吗,为什么用a loud noise I could'n do my homework with all that noise______.A going on B goes on C went on D to go on为什么不选C? Stop __________ that noise! Can’t you see that I’m writing homework?A:make B:to make C:making D:to be making I could not do my homework with all that noise< >A.going on B.does on C.went on D.to go on （3a+5)-{9a-[6a+2-(12a-10)+2(a+1)] 助跑跳远比立定跳远远得多,为什么?腻熔?暖那壮美乐章的序曲吗?是贪恋那多情的涟奸的对联赋予了晴川阁极为深刻炎影响下,正以百倍的踊?A.增大向前的冲击力B.增大起跳时的初动能C.增大蹬