已知ab∈R，若方程x²-axb=0的两根x1,x2,满足-1≤x1≤1,1≤x2≤2

The harder you work,the few mistakes you will make这句中哪有错误 When___he go to work? A.will B.does This is thef irst time in our---that we have come to BeijingA life B live C lives D lifes This is my _____ time to come to Beijing ,so I must take a map of Beijing with me . LOVE CAN THROVQH THE TIME TVNNEL TO SHINE LIKE THE SVN AND MOON What do you think life will be like in100years? I'm going train friend the station to meet to my还有 1.tian I to know lives where want why did your cousin walk to the train station yesterday morning改为同义句 I,my mother,and,station,to,walked,the,train,yesterday 组成什么句子? You___ ___ ___ （应该）meet your friend at the train station this morning 在某些地方经常看到这个,就是不知是啥意思 hr什么意思 车票的介词是for还是on,so＋形容词的用法My ticket was May 22ndA on B at C in D for(答案是D）However ,had he made mistake?A such careless B so a careless C so careless D so careless a （答案是D）请说明理由, so on 和soon 用法是什么 What is that we never borrow but often return?有点脑筋急转弯的性质 What's that building?____the medical equipment is storedA That's where B That's the buliding whichC The buliding that D There's in which为什么啊 状语从句1 . -What is that building? -_______ the students have their dance classes. A. The building What's the bid building that is being built for?这个句子所有语法现象、 这个句子有错么 A:Has the train ( )yet?B:Yes,it ( ) the station a moment agoA.got to,reached B.arrived ,arrived C.reached ,got to D.arrived ,reached ect与and so on 的区别 and so on 是在哪些什么情况下用的?前面搭配什么词? in time与on time的区别in time与on time的意思差不多,但是他们有什么区别呢?大家给我说下撒?即使和准时，两个词语意思差不多的嘛。能不能说详细点哦 -Where are they?-They're over there ______ the left,just across from the koala bears. they are over (there )为什么填there Are they American cars?改为单数 为啥 他昨天是在花园里读英语的.[ ]in the garden [他昨天是在花园里读英语的.[ ]in the garden [ ]he read English yesterday.怎么填?求帮 What do you like doing in the garden怎么回答加上中文解释 what,in,those,the,garden,are连词成句 More and more young people give their s______ to the older ones on the bus. what is that we never borrow but often return?A.Money B.Thanks C.Clothes Let's enjoy our h____ these are ˉbooksˉare over there .go there to look for ˉ用所给代词的适当形式填空（we,you,them)