求测加速度的逐差法公式推导过程

为什么说孙中山 是民主革命的先驱者 请翻译下面的汉译英,谢谢谢谢!切勿机器翻译!1：下面我要开始简单论述一下为什么我要写这篇论文. 你要去干什么?我要找看我妹妹.用英语怎么说? 评价孙中山领导的资产阶级民主革命 (她妹妹想要什么)用英语怎么说 有的鱼身上长满了刺,鼓起气来像皮球一样圆.仿写句子. 我的这个鱼是皮球鱼么?我养过不少这个鱼,一直都叫它皮球,它是皮球么?它多长时间生一次宝宝?产前的征兆是什么?它的肚子大了1个月了,都没见她生宝宝啊~而且它是我鱼缸里面的霸王,欺负别 I can't help___housework at home because I am busy with my homework.A.doing B.to do C.done D.with doing您给我讲一下,选哪个. I can't help to repair the desk,because I am busy此句中heip后是否有一个人称代词 假如有 这个人称代词能否省掉 she can't help_____the house because she's busy making a cakeA) to cleanB) cleaningC) cleanedD) being cleaned请问填空处为什么是选择to clean,组词can't help后跟的不是动名词结构吗要是谁能再帮我解两道题,那15分就是 I'm sorry I can't help you tonight because I am b_____(括号里填什么） it is rain 和 it 0s raining区别 it is started raining可以改成 it is started to rain 英语翻译合格的导游,就必须熟悉这个国家的历史和文化.To be a qualified tourist guide,one is ought to have a good knowledge of the history and culture of the country.请问下,这个翻译有什么不合适不地道的地方么? 英语翻译原句：你永远不会知道,你不经意的一句话,对另一个人的影响有多深. 历史人物小传700~800字注意事项：1.小传因篇幅所限,一般不能详尽地写出人物的一生,但也要大致介绍他（她）的生平经历,比较全面地展示他（她）的主要思想性格特征,透视人物的精神世界. It is raining hard,and there is waterIt is raining hard,and there is water（ ）请问括号里填什么呀？ It s raining hard,and there is water( )括号中填什么只能填一词 1.It's raining,there is some w( ) in the street. 当新年的钟声桥响时,我们会吟诵（ ）的诗句__________________,_____________ —Can I have something____? —Oh dear.You can only drink some water.There is______in the kitchen—Can I have something____?—Oh dear.You can only drink some water.There is______in the kitchenA.to drink；nothing B.drinking；something elseC.to country 和village区别吗? I am only too happy to help you out. How may I help you? 分别改同义句 当对方说thank you时 为什么要用Don not mention it 回答,I am happy to help you 为什么不对呢? 请问"country"与"village"有什么区别呀? She said,"I am very happy to help you."→ 　She said that she was very happy to help you.可不可以变成 She said that she was very happy to help me （注,本题是直接引语变间接引语） country 和village有什么区别 写“钟声”的诗句快 从枫桥的钟声想到那些诗句 请帮我翻译这是个冬天的下午,天在下雪很冷,BOb一家都待在家里 有没有 sb spend some time to do sth 这个句型?那 sb spend some time doing sth 冬天很冷,有时下雪.翻译成英语