北京市初中开放性平台

甲、乙、丙三个数的平均数是140,甲、乙两数的比是1:4,乙、丙两数的比是3:5.这三个数各是多少? 汽轮机的基本原理和特征是什么 write something about your coutry.(至少30个）急用,如果会那就谢谢啦这句话的翻译 加工贸易型经济和进口-加工-出口型经济一样么? Your Free Alibaba.com Membership has been confirmed翻译什么意思? 直话直说的英文是什么 Most srudents likes Miss Liu.改为同义句Most stdents _____ ______ _____ Miss Liu. be good with翻译 那些几级翅膀羽毛在哪得的?谁知道说下谢谢 “跟我玩”翻译成“play with me”对吗?或者有什么更好的翻法吗 Could you post the letter for me?A I've got a toothache B With pleasure.c The same to youD Very muchE Because he is ill 羽毛有什么用?几级可以弄翅膀?最好详细点! Do you want to(r )the letters from your dad?（A )the students like Miss White.I have(m )good friends in my school.I like the red cap a lot.(改同义句）Chinese,does,he,good,speak（连词成句）the,I,tell ,will,girl's,you,name（连词成句） the students from （）like the comedies是填 japanese 还是 japan 为什么 the person next to Daisy on the bus was an( ).怎么填? .It was because he had missed the first bus.是完整的宾语从句吗 where can download songs for free? where can free download english songHI...I WANT find english song FREE AND SIMPLE DOWNLOAD...THX The driver didn’t 36to start the bus soon because it was not yet为什么36只填intend 不填deside 为什么新马歌手总是prefer chinese song to cantonese song?他们大部分都会讲广东话甚至比华语讲得还流利,为什么却很少出广东歌? Most chinese student have difficuities learning engjish是什么意思 accelerate to maximum speed,then bring your car to a full stop in the designated blue 这个事IPAD游戏GT Racing 生涯模式下的一个直线加速的关卡 但是就怎么也过不了 It is a year since I goodbye to him .(say) accelerate和speed的区别?To make the car 'roar down the arcade',the driver must have _____.a.accelerated b.sped c.run d.reversed 为什么不能选b?怎么区分accelerate和speed? WE SAY GOODBYE TO THEPAST YEar这句话是什么意思 accelerate与speed怎么区分? pick up speed与accelerate有什么么区别? Miss Li is e________some problems to her students in class 1、Miss Li ______(与.交谈）her students.2、We are going to ______(参加）the meeting this afternoon.3、She is an English girl.(变为复数）.4、the like what weather June is in )(连词成句）5、who with going to is go swimming you(?)( Many students in （o ） class like （A ）. 我的朋友几乎没有用facebook的,我想用facebook和老外交流,便于我提高自己的英语水平,可是我不认识人家怎么加人家为好友呀?facebook不是基于实际的社会关系的一种聊天平台吗?我现实生活中根 应用程序管理里面的切换是什么意思?安卓手机