拐点坐标怎么求

It seemed that he had been told all ------.A.what happend B.had happend C.that had happened D.what had happend 请提供正确答案和解析,My answer is also D.But the true answer is C.I don't know why?Who can tell me?D 的 happened 为什么错了 My throat was on fire.怎么翻译 when my son was a baby,his room was on fire one day.的中文翻译是什么 fire on my My mother cooked on a fire.对cooked on a fire进行了提问 "it looked as if it was on fire."的意思? 英语翻译什么事科幻小说?为什么会产生科幻小说?科幻小说兴盛的原因?全部要英文的,全英文解释,英文,最好有翻译,谢谢大哥大姐们了! 译Simple and quick to make and so attactive-this delicious coffeecakeSimple and quick to make and so attractive-this delicious coffee cake can be served whenever a good cup of coffee is brewed.4to4 1/2cups all-purpose flour 1/4 tdp.ground ginger2p 凶猛近义词 it occurred to sb that... 英语翻译The Chinese goverment,____(involve的哪种时态形式?)in specific efforts to prevent control AIDS,has creased Hive testing and monitoringamong the general public. The Chinese goverment,____(involve的哪种时态形式?)in specific efforts to prevent and control AIDS,has creased Hive testing and ... I'm studying Chinese in this month.是现在时态,还是表示"这月我要去学中文"的将来时态 朝花夕拾概括 急求BEC真题集第四辑中级听力和真题集第三辑高级听力,都是人民邮电出版社的. Parrots are very pretty and they can talk .They're the most _______(usual) pets. She always has many new and good She has __many good ideas for teaching.A.come up with B.caught up with C thought about D.makes up It () that no one knows what happened to him A.seemed B.seems C.looks D.looked He seemed _______what had happened . A to know B know C knows D knowing选啥求解释仔细些 三分之一加五分之一加七分之一等于? 将下列句子改为同义句 No one seems to know what has happened.( )( )( )no one knowshappened.After reading these words ,he went on to copy them.( )( )( )these words,he went on to copy them. 帮忙翻译下the modern habit of doing ceremonial things unceremoniously is no proof of humanity ;rath如题 "It is becoming more and more imposrtant for people to eat the right food. the most interesting movies are c( ),they me happy 逐渐的近义词 教训的近义词 想方设法的近义词 为什么进不了魔方格 第十七题对吗 是what I should do还是what should I do what should i do,doctor?_fit,you should eat healthy food and take more exercise every dayA.Stay B.Staying C.To stay D.Stayed what you should do is more than ____(master)the new words.在这个句子里答案是mastering,为什么?还有在这个句子里more than 的意思是什么? 比a的平方2-3ab+b的平方2少a的平方2+3ab+b的平方2的代数式是 比a的平方-3ab+b的平方多a的平方+3ab+b的平方的代数式是________.