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物质的分类、变化和性质下列物质有一种在化学性质或分类上与其它几种物质不同,1.CO2 2.P2O53.CaO 4.SO2 这种物质是? 化学--物质的分类与转化 （几道基础问题）急!1.对于常见的单质而言,如何从名称上快速判断其种类和常温下的状态?2.列举你所知道的唱将的强酸、弱酸、强碱、弱碱.3.你能写出由N,H,O三种元 1、与加拿大首都相比,巴西首都的位置特点是：2、加拿大与澳大利亚首都特点相同之处有：3、加拿大和澳大利亚的首都位于国土纬度较低的地方,4、通过与以上三个国家首都位置的比较,来评 1.长江的四川段和荆江段面临什么问题2.说明我国季风气候的特点注；这是简答题,不要给我大段话,我只要中心核心的几句话,抓得分点 sat 作文 ：Is talking the most effective and satisfying way of communicating with others?I need samples she like ( )分享 food with others. 快乐作文800字 描写春夏秋冬的〖景色】词～～～～急,1小时内需要答案是景色!不是包含“春”、“夏”、“秋”、“冬”的成语如：鸟鱼花香、烈日炎炎、菊花怒放、冰天雪地 诸如次类的``````急~~~~~~~~~~~~ 初中化学物质的分类题,来看看?1.硫化铁 Fe2S3 2.氨气 NH33.氨水 NH3·H2O4.硫化钠 Na2S就是填酸、碱、盐、氧化物、单质……之类的化学物质分类 要精确至宏观与微观,求图表. 等比数列An满足：a1+a6=11,a3a4=32/9,求a1这道题我知道a3a4变成a1a6,然后和前面那个式子联立,解方程,我就是这个数算不明白啊,可不可以给详解一下.怎么都算不出来. 集合A={a,a+d,a+2d},B={a,aq,aq2} a不等于0,且A=B.求q的值 Please tell them____ A.where are they going B.where will they go C.where they are going it can not tell other bees where the food is by speaking to them but it does a little dance in air.语句通顺的! he did not tell me ()A where he will go B where he would go选哪个 where would you like to go on vacation by s—— or by airwhere不要 “would you tell me where ( )go "he asked.A.I will B.I should为什么? The man whom our teacher is talking with is Li Li's father.whom做的是宾语,那谓语是什么呢?还有定语从句 不是说从句是一个完整的句子吗,He says he's the man who bought these books.这个句子的定语从句部分是 who bo Do you know the girl is talking with our teacher?为什么用that而不用whom或who.说明理由 已知集合M={a,a+d,a+2d},N={a,aq,aq^2}其中a不等于0,且M=N,求q和d的值已知集合M={a,a+d,a+2d},N={a,aq,aq^2}其中a不等于0,且M=N,求q和d的值已知集合M={a,a+d,a+2d},N={a,aq,aq^2}其中a不等于0,且M=N,求q和d的值求出 q 和 一筐苹果(不足100)个,2个2个地数、5个5个地数都剩1个,这篮桔子最多能 已知集合M={a,a+d,a+2d},N={a,aq,aq^2}其中a不等于0,且M=N,求q的值aq^2指a乘q的平方要有过程的．怎么进行有3个字母,2项式子的解,说具体点好吗? 一筐橘子,2个2个地数·3个3个地数或5个5个地数都正好数完,这筐橘子至少有多少个? 已知集合M={a,a+d,a+2d}N={a,aq,aq2(平方)a不等于零,若M=N,求q . 一筐橘子,3个3个的数,5个5个地数,7个7个地数都余两个,这筐橘子至少有多少个? 已知集合M={a,a+d,a+2d},N={a,aq,aq的平方}表示同意合集,其中a不等于0,求q的值 英语翻译PS：不要什么1314、就要上面的那句话的数字翻译就好了.（望有答复.谢） CAD地形图放坡?怎么画出来的啊在地形图上,如何画放坡的界面的?等高线好乱.要画1比2的放坡开挖,知道基底标高了.怎么画成放坡图呢? 已知集合A={a,a+d,a+2d},B={a,aq,aq2},若A=B,则q的值为A.-1\2B.1\2C.1D.1,1\2要写出详细的过程 When I got into the room,Sue was busy talking __ the phone.A.with B.on C.to D.in请问选什么?为什么? -How is your roommate? -she really_.she always make rude marksA.turns me over B.turns me off C.turns me down D.turns me out每个选项需解释. Don't laugh at her.She is___any of the others in your class.A as clever a student as B as a clever student as Cso clever a student as