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The students clean the windows every day(改为被动语态) 很害怕自己怀孕了懂得来告诉我好吗 现在分词做状语的问题— The woman biologist stayed in Africa studying wild animals for 13 years before she returned.在这里studying是现在分词做目的状语还是伴随状语啊,另外这里可以改成：The woman biologist stayed i a2b2-4ab+2=1-a2-b2求a+b 第三题的第三道 已知钝角a与5a的终边关于x轴对称,求角a The teacher told us the eighteenth and last lesson ______ quite easy.The teacher told us the eighteenth and last lesson ______ quite easy.A.is B.was C.are D.were 一台25英寸的电视机.它的体积约是【 】 伸出你的小拇指.它的体积有【 】 拿出你的橡皮擦.它的体积约是【 】 看看你的数学课本体积约有【 】【最好是小学课本】 1/4-1/5=1/18+1/6=1/2-1/8=7/11+5=1/3+1/4=2-1/3= 23 [ ] 【 】 1 4 [ ]___ =[ ]÷[ ] 7÷13= —— 4个 ____ 是1 17个____是【 】 —— 里面有4个------45 [ ] 【 】 19 61 [ ] 把下面的分数化成小数.【不能化成有限小数的 保留3位小数】31 2 7 4 5 11 23—— ____ ___ ____ ____ ___ ____100 25 30 9 6 50 20 X平方+（K+1）X+K是完全平方式,求K的值``怎么做啊`` 如果x的平方+3xy+k是一个完全平方式,则k的值是______ John Milton is Samson Agonistes.answer the question 帮忙翻译:The Annotated Milton encompasses the monumental sweep of John Milton's poetryThe Annotated Milton encompasses the monumental sweep of John Milton's poetry.这是一本介绍里的句子,主要不理解这里sweep什么意思 拜求英语高手翻译《There you'll be》! John Cage的简介最好用英文版的 john scopes简介 求解释一道GMAT数学题A marketing firm determined that,of 200 households surveyed,80used neither Brand A nor Brand B soap,60 used only Brand A soap.and for every household that used both brands of soap,3 used only Brand B soap.How many of the 2 In the decimal representation of x,where 0 < x < 1,is the tenths digit of x nonzero?(1) 16x is an integer.(2) 8x is an integer.A.Statement (1) ALONE is sufficient,but statement (2) alone is not sufficient.B.Statement (2) ALONE is sufficient,but state The teacher told us that the moon _ (it)_ (not)shine yesterday 你还知道新版六年级英语的六十六页的 Lesson33. Just read and speak那你还知道新版六年级英语的六十六页的 Lesson33. Just read and speak那两小段的英语翻译吗?在六单元 谢谢 谢谢 谢谢 GMAT数学题求详解A 准备了4个不同的信封和对应的4封信,现在他随机的把4封信放入4个信封（每个信封都有一封信）.问恰巧只有一封信正确地放入对应信封的概率有多大?我发现每到难一点的概 容积率怎样计算 At a garage sale ,all of the prices of the items sold were different.If the price of a radio sold at the garage sale was both the 15th highest price and the 20th lowest price among the prices of the items sold,how many items were sold at the garage s 一道Gmat数学题!For any positive integer n,the sum of the first n positive integers equals n(n+1)/2.what is the sum of all the even integers between 99 and 301? 正方体的内切球与其外接球的体积之比为多少? 已知正方体的外接球的体积是36派,则正方体的内接球的半径为? 立方体的全面积是24,它的外接球的体积是 正方体的内切球与外接球的体积比是 急需john snow 的英文介绍,不用太长 they clean the classroom （用tomorrow改写句子）求!