抗拉强度怎么计算

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21.Not until I began to work __________how much time I had wasted.A.didn21.Not until I began to work __________how much time I had wasted.A.didn’t I realize B.did I realize C.I didn’t realize D.I realized这里为什么要选B 不选A? not until i began to work[]how much time i had 英语手抄报 I like Engish要好点的非常急 要图片 花们的英语怎么拼 ”花” 英语怎么拼我想写一句话花 请在天堂里照顾好它!注 花是人的名字追20 花-英文怎么拼, A week later,they called me and asked me what that the boys wanted for Christmas. He wanted to be a doctor then(改成否定句) He was sleeping late his mother called him this moring.A.while B.when C.then D.and i surfed the internet and then called one of which the telephon number is providedof which we didn't see him at the lecture yesterday,he___itA,can't have attended B.needed have attended He didn't attend the meeting yesterday.的同义句 He waHe didn't attend the meeting yesterday.的同义句He was not _______ ________ yesterday's meeting.为什么横线上填present at the firm hadn't the money to pay such large salaries.(afford)the firm couldn't ( )快 Could the firm pay such large salaries or not? 做人造彩虹,人为什么要背着太阳向空中喷水 怎么快速提高背单词的效率? He told Mary that he could not go school tomorrow.请问,为什么could用的是过去式? They are thinking of____(travel)to Beijing What's the most expensive way () to Beijing?A travel B travels C travelling D to travel 介绍X-man 英文 求电影X-Men Origins:Wolverine(金刚狼)的英文剧情简介!要求:分开8个情景剧情写,不用写太多,最好用几句话就写出一个情景剧情! 英文简述这位 GREAT MAN 生平( 200 要素:人物:此人1898年3月5日生,字翔宇.小名,大鸾.曾用名飞飞、伍豪、少山、冠生等.原籍浙江绍兴,生于江苏淮安.(百度把其名讳给禁了郁闷)类型:伟人要带感情, 面试英语自我介绍用man好还是boy啊我大二,面试要求英语自我介绍,我是用"I'm an optimistic man."好还是"I'm an optimistic boy."好呢?(我18岁)最好简单谈下理由. Tian'an Men square英文介绍 ad.在英语单词中的所代表意思是什么? 在太阳光下喷水雾制造彩虹,应面对还是背对太阳?为什么? 英语翻译 Ture 例句1.Do you think she is Danish(Swedish)回答1.I‘m not sure,She may be Swedish.回答2.I'm not sure,She may have been Swedish.书上说he may be=他可能是,he may have been=他可能已经是,照这样翻译,两句回答就是1.我不确实, 真正的男人英语是应该说是real man还是 genuine man 冬天在教室脚冷怎么办 冬天坐教室里怎么让腿脚暖和 怎么让冬天的教室变暖和就是在教室里不会让学生们冻着 而且可以不穿衣服