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某种粉末遇到水,水会迅速变成类似凝胶状物体.我弄了硅酸钠,没有反应某种粉末,遇到水,水会迅速与之反映变成类似凝胶状物体,透明,具有黏性,有点颗粒状,有点像精液 请问是什么?我买来了 游泳池想做恒温的热水热源怎么选择啊? 七大洲中什么洲全部位于南半球? 七大洲中主体部分既位于西半球,又位于南半球的大洲是? 七大洲中,全部位于南半球的是 （有俩个空,不知道是不是书错了） Revise the following sentences with the given rhetorical devices.1.David’s beloved grandfather passed away last week.2.He looked at me with a sad look.3.Sorry,my pocket can’t afford such a pair of shoes.4.I never believe until then that any meal 【紧急求助】Revise the following sentences.对此题型比较生疏,请问Revise the following sentences这类型的题目该如何着手最好,如何按照题目的要求修改得恰到好处?一并请详细给介绍一下.如下我摘抄一 They want to see movies(改为同义句) They want to____ ____ movies. 英语翻译I am someone else with you,someone more like yourself I can't be with you when I know I'm losing you to someone else怎么翻译成优美的中文 I was at home when the Internet,you are lingering in bed with someone else?I was at home when the Internet,you are lingering in bed with someone else?这句话,有没有语病,如果有请帮我指出一下 然后改过来 请问是be pleased to do sth还是be pleased with sth 请问be to do with sb or sth 试举例 怎么译 全部或大部分位于北半球和南半球的大洲有什么?赤道横穿大陆的大洲有什么?主要位于东半球的大洲有什么?位于西半球的大洲有?急用! 即位于北半球又位于南半球的大洲是（ ） 第八题为什么做负功? They want to see movies .的同义句为They want to ( ) ( ) movies.They want to see movies .的同义句为They want to ( ) ( ) movies. Would you like something to drink,too?此处用too正确吗?不是说either用在否定和疑问句中吗? something you something you like* someone you love* somewhere you go* sometimes I miss you'请翻译成中文, 浣溪沙这首词的上阙描绘出( )山林景色,下阙就眼前溪水西流之景发生( 山下兰芽短侵溪......... 请用一个词形容浣溪沙上阙的景物特点 The giraffe is taller than the elephant.怎么问The giraffe is taller than the elephant（答句）.问句是什么? A mouse is smaller than an elephant什么意思 The elephant is___than the turtle. A.shorter B.taller C.younger when you extremely need someone (It happens to everyone).Don't get too lonely though.Good luck.帮我翻译下, 形容野花的词最好是AABB的四字词 请问花朵应该用什么词来形容 弹簧式安全法的工作原理是什么 where is your online friend from? 西安朋友帮我找一下卖玻璃烧杯的化学试剂店详细地址和电话谢谢 新概念英语第二册:A town is usually bigger than a village but smaller than a city.Alice Springs is a small towm.A town is usually bigger than a village but smaller than a city.翻译中文意思:________________________________________________