生产金属管件

将醋酸（食醋）与氢氧化钠反应生成醋酸钠与水倒入蒸发皿,出现的固体为黄白色,继续加热,融化成黑色液体,Why? “No pains,no gains”用汉语怎么说? adapt toThrough evolution,most flowers have adapted to attract specific types of pollinators.个句子中adapt to 后面为什么跟的是不定式to attract 而不是to attracting ___useful invention the computer is!A:What a B:What an C:How a D:How an选A还是C,请说明下原因how + 形容词、副词+主语+谓语,How a useful invention the computer is! I am glad that you can keep yourself busy,it is good to be busy,don't you think so?甚么意思 -l hope that we will have no homework -________.(l hope so,but l don't think so;l hope so,and ldon't think so;l hope so,or l don't think so;l not hope so,but l don't think so) 有一个质量为4千克的匀质球,它的半径R为6CM,将这个球放在墙与均匀木板AB之间,A端固定在墙上,B端用水平绳索BC拉住,板长AB为40CM.如果模板质量忽略不计,当α为60°时,求绳的拉力（精确到1牛） 有一个质量为4千克的匀质球,它的半径R为6厘米,将这个球放在墙与均匀的木板AB之间,A端固定在墙上,B端用水平绳BC拉住,板长AB为40厘米,如果木板的质量忽略不计,当板与墙夹角为60度时,求绳的 你去参加过我国的一些著名建筑吗?请你写一两句话来描绘自己熟悉的建筑,并用上“美轮美奂”一词 用美轮美奂这个词来描写我国一处著名建筑.你参观过我国的哪些著名建筑?请你写两三句话来描绘自己熟悉的一处著名的建筑,并用上“美轮美奂”一词. many （近义词） teacher（名词所有格） board of trustee是什么意思 -----useful information you‘ve brough.A：how aB：howC：what aD：what 1.________ important information you've emailed me!A.How B.What C.What an2.The Flower Festival,_______ at Changfeng Park the coming Sunday,will be a great success.A.opened B.to be opened C.opening3.He said he was ready to give a job to me _______ I c I don't know how to improve my spoken English.Would you please ______?A offer me an advice B give me some adviceC offer me many advice D give me lots of advice I would like to improve my English spelling._ _ _would you like to improve? 翻译 黄浦江畔的这些建筑纷纷涌现于上世纪末（locate,spring up) Could you give me a hand?的答句A .All right B .NOt at all C.No problem D.Yes ,I can 上海的黄浦江停船的地方用英语怎么说?RT.就是类似于以前那种十六铺码头.经常有很多摩托车和人乘船过黄浦江的那种地方.用英语怎么说? 黄浦江的英文是什么? 她是一个害羞的女孩以至于不敢在其他人面前唱歌 翻译 she is _____ shy to sing____ _____ ____ ohters. suggest与adviseAs i felt better,my mother___me to take a holiday.（advised）为什么不填suggested 而填advised?区别是什么? Could you please advise the repair progress of the following parts we sent to you before请问这句话有语病吗?..of..后的从句应该修饰的是那个词啊?是parts还是progress? 船在黄浦江翻译成英语 vice-chairman of the Central Military Commissiontranslate them I am in Grade 3 in a middle school.How can I go back to Grade 2 immediately? How to be a Grade Nine student是英语作文昂~ You can't call me __ that. it says what books you can read and what ideas you can understand 定语从句合并句子The man looks like the singer.I heard his songs on tv2.Who is the boy?The boy is speaking English.3.the fan is on the desk.You want it.4.the students will not pass the exam.they don't study hard. 请问如何模仿英音?经常听bbc,自己说出来的还不是英音.想要说出纯正的英音,应该从何下手? students的所有格是什么