质点沿轴运动，通过坐标时的速度为，为正常量，质点从出发到处所经历的时间

我想问一下如何快速的提高我英语的成绩 英语这次月考这有60分 刚好及格英语这科拖了我的后腿 与别的科相差20多分 但是我不想浪费父母的钱去补习 我想自己努力 把成绩赶上去 请问各位 He was eager to make some extra money,since during these years he could hardly live on his_______.a． little wage b.few wage c.wage d.wages再讲一下其中的语法知识,我将感激不尽, he was e4ager to make some extra money,since during these years he could hardly live on his /a:wage ; b; wages ; 为什么要加s? He eats breakfast at 6：30 every day.改为一般疑问句 关于 move on今天看见有人对我说move on,Jeff 说这话的是我的初恋 许久没有与她联系 而今天我给她发了一个消息得到的回复.我想知道她到底是什么意思 是让我继续还是让我离开她?我很困惑.我 MOVE ON怎么样 move 为什么读书或听课的时候总是没办法集中注意力? 本人高中生,为什么我听课精神不够集中,容易分心,我应该怎样做才能不分心我理解能力挺强的,一般难题老师讲个开头我就能懂了,就是容易分心,有些知识点没听到 He ___some money ___ his son to buy some books.原句：He gave his son some money to buy some books.（同义句） 连词成句breakfast he very eats for them and dinner day .找出错误的那一部分并改正What food do you eat for lunch?A;What B;do C;to eat D;forWhat food do you to eat for lunch？句子打错了， we keep cargo on the move什么意思 keep 和 keep on 的区别, keep on和keep区别 keep 与 keep on 的区别keep doing sth 与 keep on doing sth 的区别还有其他的看法吗？我想多听听大家的意见 breakfast,he,every,eats,for,them,and,dinner,day(连词成1句)'一r 翻译英文：would you like to be friends with person and why? shen wants me to wear trainers because she thinks they don't make me feet hot.这句话详解,急!在英语书上shen wants me to wear trainers because she thinks they don't make me feet hot 老师不是说think的否定要前置吗?为什么这句 my life be like 歌词 1.be generous in doing sth 2.be generous to sb 3.be generous with sth 翻译 must should can/could 的区别和用法sorry,太多要求 should 和must的区别是什么?在用法上有什么异同呢? 英语中should must的用法must除了用于规矩制度还用在哪些句子中?比如与健康有关的句子用should还是must?-I like playing computer games.-I am afraid you_____stop for your study and healthA.shouldB.mustC.may选什么呢?A和 should/must表猜测如何区别?oh,its 1:30 pm.you ____hungry.lets go to the nearest restaurant.A should be B shall be Cwill be D must be should must 表猜测,如何区别?一定要让我理解哟,还有，should表猜测可以用于疑问句中吗？ 是吗.我的梦想就是听懂cctv news听说过了专八也不一定听得懂cctv news should和must的区别也有人问过.他们说的不太详细, like是什么动词（如be动词,助动词.）like是实义动词吗 助动词与be动词可以互换吗助动词do与be动词在某些情况下可以互换还是在任何情况下都可互换?1 he get up为什么不能是he is get up 如果不可以那么怎么判断要不要加be动词?2 当要表达我有一个朋 在一部电影中看到make out 有亲嘴的意思.为什么make out有亲吻的意思呢?整句是“unless you wanna stick around and make out” 初一英语试题一般有什么样的题型就是有没完型填空什么的,总共有多少种题型 上海财大自主招生英语试卷题型RT,作文?字数?听力?中译英?英译中?填词?顺便讲下数学的我浙江的