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把蒲公英等植物的茎掐断,从茎的断面上回渗出白色的液汁,这些液汁是从导管流出来的.为什么?白色的液汁是指水分和无机盐? 民族平等,民族团结,各民族共同繁荣的联系是什么? 请问,东南亚的首都名称分别是什么? 东南亚各国的首都名称 Rich ___ she is now,she doesn't feel ___ happy as she has expectedRich ___ she is now,she doesn't feel ___ happy as she has expectedA like;so B as;as C since;as D though;that 把蒲公英等植物的茎掐断,从茎的表面上会渗出白色的汁液,这些汁液是从哪流出来的 七年级生物折断蒲公英的茎,白色的汁液来自哪里 七年级生物折断蒲公英的茎,白色的 Look at the sun!It's too hot today-Yes.Why not___your coat.A.take off B.take away C.take out D.take up look at the bright sun! it 's ______ that we'll have another hot day.a . common b. noisily c. loudly d. heavily请分析,急呀, under the hot,bright 设函数f(x,y)在区域D上有偏导数且偏导数有界,求证f(x,y)在区域D上连续 写一个一分钟的speech.Suppose you are a news reporter of your school newspaper,who would you l急1.Suppose you are a news reporter of your school newspaper,who would you like to interview? can you the letter yesterday's school newspaper_can you the letter yesterday's school newspaper?_Yes ,i canA answer,on B reply to,in C reply,on D answer to,in 4（x-y-1）=3（1-y） -2 x/2+ y/3=2加减法解 六年级数学上册评价手册p23页 第6题 具体些（要写算式,要确定,用方程解）6、甲仓存粮130吨,乙仓存粮80吨,从甲仓运多少吨到乙仓,才能使乙仓存粮比甲仓的4倍多10吨 六年级上册数学评价手册第1页最后一题,用方程 七年级数学上册评价手册答案82页1~4题,只要方程、第一题不要了、2.一件工作，甲单独做需要18H，乙单独做需要15H，现在由甲乙合作5H后剩下的由甲做，还需要多长时间？ 3.甲、乙两水管往水 关于圆的画图题只用直尺和圆规将圆3 6 8 等分只用圆规将圆4等分是3，8等分 欧非亚文明各国的地理环境、经济和政治特点还有其共通点 9 8 7 1 加减乘除怎样才能得1 每个数只能用一次 2分之1—(4分之3-8分之3）脱式计算 who's the president of the United States of America?please write his name in english or chinese一般要写几个?例举几个 A knock at the door( ）him.a .interrupted b.was interrupted c.interrupting d.was interrupting选哪个,为什么 A knock at the door __him .A,interrupted B was interrupted C interrupting D was interruping Per your request,a membership application has been created for you.You may download a copy of your personal application using your ID# and birthdate When your completed application is returned and approved,you will receive an official approval letter Your Campaign Response request has been queued 直线系方程?圆系方程?共焦点的椭圆系,共渐近线的双曲线系?曲线系方程你知道吗?直线系方程?圆系方程?共焦点的椭圆系,共渐近线的双曲线系? 一个焦点坐标(3,0) 过点A(-5,0) 求椭圆方程一个焦点坐标(3,0) 过点A(-5,0) 求椭圆方程 knock at the door造句 thank you ( ) your e-mail. We will respond to your request once it has been reviewed and any required investigation completed麻烦帮我翻成中文好吗? 西夏历史