二重积分x型y型区域

【初二英语】【句型】Someting is wrong with your ears.（同义句转换）Someting is wrong with your ears.（同义句转换）_____ _____something wrong with your ears. I recognized her____I saw her.填哪个 为什么?①the instant(that)after 填哪个 为什么?②选项里给的第一个that可以省略在做题的时候 也发现 像for fear（that） in case（that）都省略掉了that那是不是 想这种 We hadn't planned to meet.We met ? chance.A.of B.in C.for D.by 勤劳的好处 英语 有关勤奋的事实论证 the bridge's broken in the 23kg与the bridge is in the 23kg broken?不对请指正 The bridge is ( ).A.100 metres long B.100 metre long C.100--metre long 为什么?C为什么错 23.The place _______ the bridge is supposed ...23.The place _______ the bridge is supposed to be built should be ______ the cross-river traffic is the heaviest.A.which; where B.at which; whichC.at which; where D.which; in which翻译并解释为何 You will never guess who Imet today.My old teacher!We______for20 years!Haven't met/Hadn't met ...You will never guess who Imet today.My old teacher!We______for20 years!Haven't met/Hadn't met该用现在完成时还是过去完成时?个人以为用 其称文小而其指极大举类迩而见义远其洁故其称物芳其行廉故死而不容是什么意思? 英语翻译全文翻译 有的话顺便把课后问题答案也写了 亲 们. 英语翻译Yes,but how can a vehicle move smoothly when one tyre is of a tractor and the other of a cycle. 怎么查询六级有没有报名 六级查分短信多少 改错My friend didn't see me for many years when i met him last week.能改成hadn't seen 么从句不是过去式么 前面不应该用hadn't么答案是改成haven't seen I haven’t seen her for 35 years or so,but I recognized her a_A.the moment I saw her B.for the moment I saw herC.at the moment I saw her D.the moment when I saw her为什么选a不选d呢 "collateralized mortgage obligation"是什么意思?如题. 什么是Collateralized_mortgage_obligation? 望而叹曰:“其室虽迩,其人甚远.”其为名流所钦尚如此.的翻译?拜托了各位 谢谢中文(白话文)最好字对字一一映 翻译下“望而叹曰：‘其室虽迩,其人甚远.’其为名流所钦尚如此” power walking 请翻译一下, 专注和勤奋的含义及它们对成功的作用. 反映勤奋专注的成语 withholding是什么意思 withholding treatment 请问medication withholding requirements是什么意思? 谁能用 东京铁塔 巴黎铁塔 还有埃菲尔铁塔 弄一组姐妹网名啊? Differentiation 和difference的区别 It is not ring to judge a student good or bad only or her 巴黎铁塔 东京铁塔花绳怎么翻?最好有图,【急】快,明天我就比赛了,在不学会我就完啦,【求求求】最好有图, 东京塔高还是艾菲尔铁塔高? Be nice to agirl,buy her a