雾霾的主要成分

选择 (21 21:10:52)X,Y两元素的原子量分别为M和N,化合价分别为+a和-b,则由此两元素组成化合物中X元素和Y元素的质量比为（      ）A.aM：bM      B.aN：Bm   属于缓慢氧化的是什么 (10 21:5:52) 属于缓慢氧化的是什么 力的作用是相互的 (5 15:46:49)将电扇安在一汽车模型上,当电扇工作时,空气会由静止而流动起来,这说明里能___________;同时,小车将向右运动,其原因是____________________.类似的装置可应用在某些交 浮力 (1 20:52:21)一底面积为110平方厘米的圆柱形盛有1N的水,另一物体底面积为100平方厘米,和地面恰好完全接触 ,求该物体的质量 三道初二英语选择题①The girl_____blue is his sister.A,wears B,in C,puts on D,with②Sichuan is____the southwest of China.A,in B,on C,to D,of③Look,there is a boy over there____the tree.A,on B,in C,at D,of 1.By the end of July in 2008,he_______ university.A.completed B.will complete C.has compelted D.had completed选什么?By the end of一般用于过去完成时,但是这里July of 2008 是将来的,还没到2008七月,应选将来时还是过去完 （ ）1.Is there ______ room for me to stand in?A.a B.an C.the D./( )2.My parents couldn't decide whether they ______send me to a private school next year.A.will B.would C.were D.has to( )3.They were made to work hour _____ hour.A.by B.to C.in D.aft 英语翻译阅读文章!阅读!要有重点语法的,还要翻译就是初二的短文.还要有翻译的. 英语翻译So uncertain（ ）about the background of his audience that he didn't know how to starthis lecture.A.he would becomeB.would he becomeC.he had becomeD.did he become选哪个呢?为什么? 初二英语期末考选择题常见语法本人初二下学期的学生 因为背单词什么的没毅力 所以 做英语卷全是靠选择题的 填空题基本上是0分 作文题就1分 我看英语跟看天书的区别就是我看得懂26个字 初二英语翻译题(急!)请不要在墙上画画好吗?______________________________?很抱歉,我不会了._____________________________. （ ）1.- What did you do just now?- I ______ a hole for planting the tree.正确答案是：dug（ ）2.There's someone ______ the door.Who can it be?正确答案是：at（ ）3.His daughter does's live with him,but she gives him a ring______.A.ev __useful dictionary it is!A.What a B.What C.What an D.How 初二英语单项选择题 1（对话）——Do you often exercise to(kepp)strong——Yes,I doA stay B have C borrow D make2Xu Jinglei is one of the most(famous)young directors in china A good-Looking B part-time C hard-working D well-known3 I am thinking about( )a school Pa 英语翻译 英语翻译Mary is reading something about how to keep healthy on the Internet.Brush your teeth twice a day and see a dentist at least once a year.这两句翻译成汉语.每天锻炼30分钟,每周三四次.这句翻译英文 英语翻译 英语翻译担任国内数十位一线作者经纪人职务,有丰富的组织和沟通经验,联系举办过多场校园讲座,书店签售,新书发布会等大型地面现场活动. 有关环保的英文句子,最好带中文翻译 英语翻译“到达中国大概需要多少天?我担心它们死亡,我需要购买任何加热或保湿的东西吗?”“库存够吗?如果可能请给我不同性别的猫”请务必准确 英语翻译史密斯先生 我是育才中学学生会主席李华 我校将举办一次英语演讲比赛 希望您能来做评委 我们演讲的主题是人与自然 时间是6月15日下午2点-5点 地点是501教室 参赛选手是10名学生 英语翻译1.Each time from the very deepest consciousness raising meditation,with all my chakras wide open and fully functioning.2.The children are being very quiet.I wonder what they're up to.3.Jean Wagners most enduring contribution to the study 英语翻译NO matter what we go through You step up,I'll step up too It don't matter what the haters say as long as you are my boo 翻译下这几句英文It was the best of timesIt was the worst of timesIt was the age of wisdomIT was the age of foolishness 英语翻译1、今天天气怎么样?多云.2、你要去哪里?我要去上学.3、你经常去看电影吗?不,不是很经常.4、Jan每天早上六点起床.5、地板很脏,我要去打扫一下.下面的是把英文翻译成中文6、What's yo 英语翻译it's up to you to find it,ang you can.what is rare is the courage to nurture it insolitude.Sparky had made up his mind early in life that if things were meant to work out,they would.Otherwise,he would content himself with what appeard to 英语翻译本人有自己翻译了一下,但是意思都不到位,麻烦精通英文翻译的高手帮忙一下(英翻中）,谢谢（谢绝翻译软体翻译）.1.The first of April is the day we remember what we are the other 364 days of the year 英语翻译1.在面包上涂上大约一茶匙的黄油2.这杯香蕉奶昔是我自己做的.3.打开收音机.我想听新闻.4.能帮我把面粉和鸡蛋混合在一起吗?5.你要在咖啡里加一些奶吗?6.你应该先把苹果皮削掉.7. 英语翻译A visit to Guilin would not be complete without a boat excursion down the lijiang River with which to Yangshuo,83km down stram-a section of the Lijiang River with which visitors will surely be astounded as scenic wonders unfold on both ba 英语翻译 英语翻译