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帮我做科学一题（初二的）收获不同类型农产品德作物,施肥的种类也有差异,对叶菜类蔬菜,收获的主要是叶,应多施( )肥,使叶片肥大;对收获块茎的马铃薯则应多施（ ）肥,因为（ ）肥能促进 初二的科学题,帮我选择一下天然的水含有,所以不适宜即时饮用.用沉淀法可以除去（浮/沉）在水中的物质,所净化的水（仍有/没有）杂质悬浮在其中,所以（适宜/不适宜）即时饮用.过滤法（ 我立刻要怎样方便的测出一油罐车中油的密度? 帮我做到科学化学题(初二)已知多种金属或它们的化合物在灼烧时,可产生焰色反应,如用铂丝蘸取含下列元素的化合物的溶液在酒精灯上灼烧时颜色是:钾---紫色,纳---黄色,钙---砖红色,钡---黄 1.爸爸只是向孩子们介绍白杨树吗?不是的,他也在表白着自己的心.（体会句子所用的修辞手法,仿写句子）_____________________________________________________2.用 …没有…没有…也没有… 造句_____________ 代扣个人所得税税务局返还手续费是否缴税? 我们穿什么样的衣服参加学校的告别晚会呢?What are we going to wear____________ 自由落体运动的物体在t等于4s时的瞬时速度是指? 解下列不等式组（要过程）(1)-2＜3x-5≤4； ⑵{3x+2≥5x-6,3-2x≥2x；﹙3﹚﹛5x+4＜2﹙x-1﹚,2﹙x-1﹚＞3﹙x+1﹚⑷2-x＞2x+8,1/2x-2/3x≥2-x/3+1 数字推理:1,4,12,32,80,( ),括号中的数字应是 解下列不等式（组）1-x 9-4x(1) —— > ———2 3 （2）｛ 3(x-1) product of china 和produce of china 区别前面的是对的 后面的怎么错了 As is known to the world,Mark Twain was a great American writer.的意思? As is known to the world,Mark Twain was a great American writer的意思? 看到进口食品上有的是made.in,也有些是produced in&product of.很疑惑到底有什么区别. 极坐标系下二重积分的问题如图：图一是题目,智商捉急真的想了好久不会. Mark Twain,an American wreter, is known for everybody here.什么意思,翻译一下,谢谢 CHARACTERISTICS OF PRODUCT 翻译成中文应该是? -----Who would you rather _____ the report instead of you?-----David.A.write B.have written C.have write D.have to write为什么是C? 英语翻译the volume of the product of the factor of drawing outμ and the volume of the feeding т sums up to 60 mm; 13.Who would you rather ______ the report instead of you? Which city has no people?貌似是个脑筋急转弯. who would you rather ( ) the report instead of you 为什么用have write 一个英文题：I wonder who you would rather ___the speech instead of you at the new—year party.A.have make B.have to makeC.to have make D.have made 谁能告诉我故事里面那个数学家是谁?那个数学家毕业很早,校长看他还是个孩子便问他多大了,他说“我年龄的三次方是一个四位数,我年龄的四次方是一个六位数,这个四位数和这个六位数正 请告诉我3个短些的数学家的轶事?一定要短 改为被动语态 1these kinds of machines___(make) in Japan.2apples ___ ____(grow) in this farm. 谁能给我传一下这两篇论文范文 Great Gatsby:A Mirror of America in the 1920's和Great Gatsby:A Mirror of America in the 1920's 和 The significant social problems reflected in The Great Gatsby 或者是分析一下美国19世纪20、30 These kinds of machines are sold well 改错 My most famous relative of all,( )who really left his mark on America,was Rob Sussel.A.one B.the one C.he D.someone为什么选A不选B啊,难道没有特指吗? About seven ____(twelve) of these machines wee made in our factory this is a factory.these machines make crisps怎么读?