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计算;2B分之根号3A乘以（根号A分之B除以2根号B分之1） 求英语周报2012-2013 总第3125-3128期答案山西省教育厅的 人教版的 急求两个阅读理解题的答案,说明原因Susan was trying on a black dress her husband had bought her on the morning of the earthquake .It fitted very well .As she was taking it off ,the fifth floor room shook greatly .Susan took her daughter 判断下面每题中的两个量是否成比例,成什么比例,并说明理由.（在13：00之前给予答案,（1）从福州开往厦门的汽车,行驶的速度和所用的时间.（2）成活率一定,植树的总棵树和成活的棵树.（3 根号3a/b*(根号b/a÷根号1/b) 在等差数列an中,a1=3,其前n项和为sn.等比数列bn中的各项均为正数,b1=1,公比为q,且b2+s2=12,q=s2/b2.求an与bn设数列cn满足cn=1/sn 求cn的前n项和的Tn 用数字23567组成没有重复的五位数,使得每个五位数中的相邻的两个数都互质,则得到这样的五位数的概率是A2/5 B7/20 C3/10 D1/4 the shop is not open today和the shop does not open有什么区别?怎么用? 翻译:when does the library open? 已知根号12的整数部分是a,小数部分是b,计算(b-a)(b+3a)的值 1,Thirty years later,the Nobel Prize winner returned to his hometown_ .a,as a world-known physicist.b,a world-known phtsicist.选b 2,the most valuable of all talents is that of never using two words _.a,when one will do b,when one will do it.选a 3,_ 英语语法高手请进 写理由Let's look at the bag.Can you see ____ "s" on the corner of ____ bagA.an the B.the the 英语语法高手请进1.In the battle more than two hundred enemy soldiers___A.were shot to death B.were shot dead这个题目有的说选择A有的选择B,好在两种用法都见过,到底选什么呢? 因式分解:t²-10-3t (t-2)(3t-5)=1 公式法解 求答!10-15题 分子式为C4H6的烃一定是炔烃吗?为什么? 求讲解第十题.最好能告诉我错在哪了 第十题求解释 某烃分子中有一个苯环状结构和两个双键,它的分子式是什么 A.C8H10 B.C8H8 C.C9H12 D.C9H8查了很多都是“环状的”,而这个是“苯环状”. 超难英语语法 写理由The money he spent within a month ____ more than 1,000 dollarsA.added up to B.added toC.added up D.added为什么不能选BBBBBB 超难英语语法（初三） 写理由1.In the past few years there ____ great changes in my home townA.have been B.had been C.were D.are2.He's already back to Australia,____?A.isn't he B.hasn't he 超难英语语法1.In Singapore,however,you will find a lot of food from China2.Linda Miller,a mother of three in London,knows all about such pressure分析句子成分 3t^2+18t+27因式分解 讲解第10题 三角形 圆 圆 三角形 圆 圆按照这个顺序第20个是什么 若方程(m²-1)-(m-1)x+3=0是关于x的一元一次方程,求m的值 英语语法~要理由!1、The second problem is__than the first one.a.pretty easier b.rather more difficult2、The advertisement has been heard__three times a day.a.to be broadcast b.broadcast3、The patient was advised by the doctor to eat__.a.half 小明在计算A∕1乘（B∕1加C∕1）时算成了A∕1乘B∕1加C∕1,得到了一个错误的答案3∕1,比正确答案夺12∕1A=（ ）,B=( ）,C=( ),（A,B,C都是整数） 求15题解释 15题解释一下=￣ω￣= 第15题求解释