水塔怎么算吨

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如果已知三角形内连接其中两边的线段平行于第三边,且这条线段的长度是第三边的一半,请问此线段是否可以证明为三角形的中位线. 用三角形的中位线做的题如图:AD‖BC BC=DC ∠BCF=∠DCF DF‖AB求证:①△BFC≌△DFC ②AD=DE.(提示:连接BD) 一道关于三角形的中位线的题目已知:如图,EF是△ABC的中位线,外角∠ACG的平分线交直线EF于点D.求证:AD⊥CD. 查有没有英语语法错误If there is a way of sending the mail that I could pay for it when I received it 感觉很别扭 急用 move into是词语吗?是,求翻译, 帮我翻译下面的词!(快)시간이 흐른뒤 请翻译do reserch into变成汉语. 不改变句子的意思,给下列句子换个说法.(1)也许任何一种飞禽都无法具有这种个性.(2)它确是一只天鹅,地地道道的天鹅. 翻译:请把这苹果切成两半. 我急求一篇高中新生的自我介绍不要英文的,要有介绍爱好的,我会乐器.也加进去.谢谢了~~~救急啊. 谁能帮我改下以下这段英文的语法错误?With increasing year by year the number of vocational graduates,more and more people are concerned about the employment situation of vocational students and positioning,in order to better understand 请帮忙改下这段英文的语法错误.Since you gave me some secret photos last night,I have been waiting for some more exciting photos.Could you hurry up?I can not wait! 请帮我修改下这段英文的语法错误Dear managers,Hi ,Would like tell you face to face ,but a little difficult to say ,so I send a email first then tell you face to face that will make me more courage .Came to here almost for 1 year ,and lea 翻译cake cut into small pieces enough for all the visitors We eat it all up. It's gone in no time! 梁静茹的 Way Back Into Love 这首歌谁能帮忙翻译成中文? the machine can cut the paper into pieces改为同意句the machine can ______the paper ______ The fish was cut into pieces.(改为一般疑问句) ____________________________________ 一道要用方程解决的应用题有一列数,按一定规律排列成;-1 2 -4 8 -16 32 -64等等````其中某三个相邻数的和为1224,这三个数各式多少? "cut them up "为什么不能换成“cut up them ” I cut the cake into small pieces and give them You should cut up the bababas before put them into the cup.这句话的同义句是啥.同义句转换 巴尔扎克的《高老头》中如何理解高老头咒骂他女儿?如何看待高老头的矛盾性格? 求剑桥BEC中级真题集第4辑听力下载,MP3打包格式的, [6(2X-Y)^3-4Y(Y-2X)^2]/2(Y-2X)^2 急需《安全伴我行》演讲稿一篇,演讲十分钟时间.关于铁路制造业 解下列方程:5(x^2-x)=3(x^2+x) (x-2)^2=(2x+3)^2 (x-2)(x-3)=12 2x+6=(x+3)^2 2y^2+4y=y+2 怎么对两个EXCL表做对比(急)!是两张盘点表,一张是未盘点的表,一张是盘点过的表,其中大部分内容相同,只是库存数量不同.怎么能让两张表不一样的地方显示出来呀?数据透视 具体怎么用呢? 怎么样把一个EXCL表插进另一个EXCL表格里面? excl怎么做表格领导让我把这个表格打出来,好久没碰excl了, 求一篇初一英语自我介绍,要求不高,简单点就可以, 书面表达,要用初一英语写啊.写一篇介绍自己的发言稿,首句已给出Name:LileiCity:ZhoushanAge:14school:No.1 Middle SchoolLanguage:Chinese and a little EnglishLike to do:Help othersFavorite sport:Football and basketballFavorite sub 解下列方程:(1)2(1-x)=2x (2)3/4y-1=7 (3)四分之y+2 再减去六分之解下列方程:(1)2(1-x)=2x(2)3/4y-1=7(3)四分之y+2 再减去六分之2y-3=0要过程合并同类项这些的.