积分与路径无关的应用

They are s-------- in Shanghai No.1 Middle School now. they are in NO.3 Middle school.以（NO.3 Middle school）提问 I_______(begin)the work this morning.And now I_______(finish)it they are in NO.3 Middle School and they are all s （填开头是s的单词） If you ( )[not help] me,I ( )[not be] able to ( )[finish] the work by five this afternoon.填合适形式. It is inportant ( ) me to finish this workA for B to 一个关于理想的作文 作文：快乐,来自与梦想 奇妙的用英语怎么说把你们知道的都告诉我,单词竞赛,要我们学过的! 快乐来自于梦想 作文不要乱七八糟的 “存在先于本质”是什么意思 存在先于本质这句话怎么理解? -____ I finish my homework now?-No,you ___.You __ do it tonight.A.Must;needn't,may B.-____ I finish my homework now?-No,you ___.You __ do it tonight.A.Must,needn't,may B.Can,mustn't,canC.May,can't,must D.Must,needn't,must I must __(finish) my homework now Must I finish my homework this evening? must I finish my homework this evening?NO,you ___ .you may finish it leaving soom.A .faster B.slowly C.more slowly I am a student h________ in a middle school.首字母已给出, I am a middle school student...I am a middle school stdent.I have been doingnothing but studying all the time.I feelsuffiscated by the pressure from teachersand school.I seem a slave and prisoner ofour school.I don't know what is meaningof life or st I am a middle school student.变为否定句.变为否定句I can piay soccer ball.They come from America.He has a litter brother.Lily's mother is Peter's aunt. 学理论物理中的核物理方向就业怎么养? 核物理的就业方向怎么样 中国核物理的发展未来.以及以后会向哪个方向发展,核能将会运用到什么程度 英法美德确立代议制标志是什么 英法美德四国历史比较高三的文科水平 需要从四国的政治体制 国家元首职能 等方面详细评说并说明是什么制度 国家元首或皇室和议会的关系等 英法日美德代议制的区别?首脑选举，权利，政体等，最好列表 What letter is a vegetable是什么意思 the letter is sent by ____a a friend of my sisterb a friend of my sister"s我为什么觉得两个都可以啊?a是我妹妹的朋友b是妹妹朋友中的一个应该是哪个啊? sends a In the world no country has exactly the same folk music __________that of any other countries．A． with B． as C.to D． like我选 这世界没有哪个国家能像其他国家一样正确地使用民间音乐.这里涉及到了哪些语法呢? 到底是from other country还是from other countries对? 当两个质子通过隧道效应靠近时,偶尔会发生弱相互作用使一个转换为中子的情况,那这时它们有没有强相互作用?会放出什么形式的能量?这个氘核比单独两个质子的能量低对吗? 核物理有关的问题想知道核反应堆的原理,结构等系统知识.谁能告诉我应该看什么书呢?还有与其相关的核物理知识.谢谢