什么是历史遗留问题

已知长方形的周长为100M,它的长Y是宽X是函数 脑筋急转弯 Why does time fly? Why does time fly?中文及英语答案 脑筋急转弯：1.Why does time fly?脑筋急转弯：1.Why does time fly?2.How can you make money out of a monkey?3.What dogs never bark?4.What goes up but never comes down?5.What has a head but no brain?6.What is the end of the world?7.What runs 有没有在英语单词不含A E I O U 的单词(不含元音的音标）Y是半元音音节,有时也发元音的音标如Play\Boy\My不要像Dvd Cd Tv样式的单词Tv翻译过来是television谢谢 谁有这书? Some of these students are children,__students are young people.A.all B.the others C.both D.other -Have you been to West Lake?-Yes,I ____ there last summer.A.have been B.went C.go D.have gone many ads are aimed specially at teenagers ,and some ( )see more than 100 ads a day.A,women B men c young people D old people 句中aimed是什么词性呀. Many ads are aimed specificaly at teenagers.为什么这里ad要用被动语态?为什么不能直接写成many ads aim specificaly at teenagers? Many ads__teenagers.A.are aimed at B.aim at 选哪一个?另一个为什么不行? Some ads use famous people.Stars are paid to sell a product.翻译. 英语翻译1.When did you do the health examination last time?2.When did you check up yourself last time?3.When did you check your body last time?4.When did you go to hospital checking yourself?我感觉这些都对,是否都正确?或者还有更 高二历史选修二怎么学? 乱的不行.怎么办? 蔡依林无言以对中的这几句英文啥意思啊 There"s nothing left to say to say hey yeah “There's nothing left to say ”翻译成汉语? 英语翻译 从上海乘飞机到广州要多长时间.—— —— —— —— —— to fly to Guangzhou from Shanghai.一空一词 赵州桥是谁建造的? 高二历史（选修三）单元测试材料一 一段时间以来,原为苏联加盟共和国的某些国家开始大规模地“去苏联化”.个别国家的部分人否定苏联的二战贡献.俄罗斯总统梅德韦杰夫.呼吁世人和国 英语翻译我以前一直也是用ago，但是今天看了一部美国电影，蝴蝶效应，“butterfly effect”的开头看到了13 years earlier的说法，是不是两者可通用 英语翻译[00:07.86]Baby when I met you there was peace unknown[00:13.13]I set out to get you with a fine tooth comb[00:17.65]I was soft inside[00:20.12]There was something going on[00:24.36][00:27.76]You do something to me that I can’t explain[0 求一些2010年好听的英文歌曲 最好抒情的像nothing in the world 差不多的……谢谢 求一些2010年好听的英文歌曲 最好抒情的像nothing in the world 差不多的……谢谢越多越好…………分越多 赵州桥的构造 元音a e i o u的音标 以单词为例 英语翻译：我们为什么不坐火车去广州呢?（travel to；by train） 日,的读音 两会的答记者问中,同声翻译怎么那么厉害,怎么练习的啊? century in a 1990s style这个短语是什么意思 求英语年月日的表达结构（好象是月日年） 及“1990s“指什么意思 Marxist Philosophy in 19th