季铵盐型与铵盐型阳离子表面活性剂的性质有何区别

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季铵盐型与铵盐型阳离子表面活性剂的性质有何区别
求一首歌 其中一句是“so listen to you song”,女... replace 和take the place of造句例句要有中文解释 DRAFT DEMAND DRAWN 应该怎么翻译 drawee will accept and discount unsance drafts drawn under this credit ,all charges are for buyers`account unsance draft payable at sight basis 急需 be able to后为什么可以加doing?在句子:You'll be able to make a living doing something you love.中的to.+doing 是什么意思?解析一下语法! 请教there should be用法,如何翻译. There should be fewer cars.和There should be less pollution 的意思 英语中there should be …如何转一般疑问句的问题,请帮忙请问,There should be more free sports facilities for the public.这个句子该如何转为“一般疑问句”呢?麻烦详细解释下,谢谢~~~ There should be too much noise.There should be (too much/more/less/enough) noise.括号内的可以换吗?(不考虑意思)只要对就行 英语翻译There should be a defined contact within the service provider responsible for the relationship with each supplier. Thid is the book ( ) I have learned a lot in my childhood.where还是which还是that?选词填空 this is the book _____which we can learn a lot. this is an (i ) book and i enjoy reading it a lot. 关于松,梅,竹,菊的诗句各两句,病要有诗名和作者 带有松,梅,竹,菊的诗句个两句,并要作者和诗名 请帮我找:诗中描写梅/兰/竹/菊/荷/莲/桂的古诗句!我急用!如题.就是所选的古诗句中描写或是含有梅/兰/竹/菊/荷/莲/桂这些字眼的古诗句. You are mine的歌词(完整的)RTA she is the last one,I want yo 什么寓意 you are you are mine是什么you are you are There were 200 people here just now.就200 people提问 There was a purse here just now这句话的意思是什么 Any ordinary girl,will have the most beautiful 有竹、松、或梅的名言警句不要诗句,是名言警句! There used tobe a house __onthe top of the mountain. YOU ARE FOR EVER 这句呢?阿门就是一个男的对女的说嘛 you are mine怎么读?最好有音标!use my mind还有一句, There used to be a tea house near the school,____ there?A.isn't B.didn't C.wasn't D.hadn't There used to be a house,_____ _____?的反意凝问句怎么问啊 请用can,future diffcult ,predicting,the,be组成一个句子 英语连词成句:diffcult,can,the,predicting,future,be怎么连