f=1/(t^2+1)的傅里叶变换是

then put these clothes in the wardrobe.为什么不用into Sorry to be late,but we were ___ for half an hour in the traffie.A.put backB.broken downC.held upD.kept off请问选哪个?选和不选的原因?顺便把句子翻译成中文. why did you come so late?the bus was crowed.we were kept for half an hour.为什么用were kept? in the night 正确吗? We were there for an hour.(对for an hour提问）_______ ________ were you there? This time I really hit the villain,and it is terrible? at night 和in the night 有什么区别?有时间长短上的区别吗? (Girl, Your heart is really thinking)是什么意思 假如一个女孩对一个男孩说take me to your 我的女朋友跟我说take me your heart If I have in your heart?I don't think I that the boy with no tears in his eyes.A noticed,cryed B noticed,cried C noticed,cried D noticed,cryed a number of 与several和only a few的区别 I noticed that the boy ____with no tears in hisI noticed that the boy ____with no tears in his eyes.A cry B cried THE BOY WITH THE SUN IN HIS EYES怎么样 In our school,___teachers are women.A.third fiveIn our school,___teachers are women.A.third five of B.third fives of C.three fifth of D.three fifths of deer怎么读 s.deer怎么读 I dont know what is you want to do.But I believe I will to help you.Idontknowwhatisyouwanttodo.BatIbelieveI.Iwilltohelpyou. We will plant more trees so that improve our environment 的同义句答：We will plant more trees —— improve our environment 一般将来时,will+verb和is going to +verb用法有什麽不同?请热心回答, They fell tired after____the museum A.visit to B.visit C.visiting to D .the visit to You must be tired out after the climbing Oh ___.I felt too tired to move.A.not a bit B.not a little C.not at all D.not nearly They all seemed___tired after the long journy.A.to be B.being C.was D.Be in singapore ,most people are Chinese ,so you can __aimply speak PUtonghua .A.just B.often C.easily为什么不选B, Most people in guangzhou are accustomed to having a chat ___tea为什么是over Cindy and Kathy walks(walk) the dogs.请问括号前加s对吗?Cindy and Kathy walks(walk) the dogs.请问括号前加s对吗? two dogs before a dog,and two dogs behind a dog ,and a dog is in the middle.how many dogs are they? 请问walk dogs 什么意思是遛狗?还是当保姆?还是别的意思?谢谢 two tigers walk before one tiger.two tigers walkafter one tiger and one tiger walks in the middle .how many tigers are there? grow的单相式 现在分词 过去时 过去分词是什么 ( A )15.Jenny says that she a bad cold for several days.A.has had B.had had C.has caught D.had caught We are all tired after _____(visit) the Great Wall.一定要有解释