可逆循环

如何学英语?如何集中注意力? 听英语注意力要很集中英语水平还行.但是每次听外国人讲英语就算他们讲的不快,我都得非常集中注意力去听,否则就什么也听不懂了,而且一般没法做到一直高度集中.为什么会啊?怎么办! 签证的职业选择里的nature science 和 physical sciences 的区别是什么呢?为什么在填美国签证的时候选择职业里面同时有这两个选项呢?物理学科不是应该包含在自然科学里么?另外为什么physical scienc physical difficulties翻译成中文 英语翻译science and technology 为什么翻译成,科学 A4纸大小的凭证装订RT,应该怎么装订啊?有个包角是怎么回事啊……求图求真相…… a sort of与a kind of的区别 report the accident to ____ is in charge of the project 请问填who 还是whoever The chief _______(engine) is in charge of the development of the project. The report shows that the accident is attributable to ( ) is in charge of the project.A.whoever B.what C.whatever D.who Mr.Smith is in charge of the project____ next month.A.is carried out B.to carry outC.;to be carried out D.will be carried out 上英语课,怎么样才能集中注意力 we are dedicsted to best products to our customersas we CARE about life sciences,physical sciences,social sciences中的sciences都要用science的复数形式呢? 填介词~1.It was her interest in science that got her ____ the physical study2.Do you know the girl who dresses ___ a boy? 网络弊大于利辩论稿针对广大群众的哦.谢谢! 跪求网络语言的利大于弊的辩论稿 网络语言对语言发展弊大于利辩论稿,急求... 一篇网络语言对语言发展弊大于利的辩论稿开篇立论,时间三分钟, 集中注意力的英文说法(高中版)有好多来!~~ 帮助他人的英语作文,80词 英语翻译目标:赚钱 目的:消费 look after the baby(中文) 纸张尺寸大小,表示我知道的有好多纸张尺寸,有全开,对开,等等开.还有A0,A1,A等等.还有B的,C的...想知道它们有什么专用的,有什么联系..... 写帮助别人的英语作文（50字） 谁有TATA YOUNG唱的I BELIEVE的歌词呀! I believe-tata I believe tata young 求tata young 的《i believe 》高潮铃声 We came here__the old man.A,look after B,took care of C,looking after D,to take care of My job is looking after the old man.还是My job is to look after old man. 谁能帮忙推荐几首类似 tata young的crush on you 这样风格的英文歌曲.非常非常感谢 Crush on you Tata Young 的歌词