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现有浓度为20%的盐水100克,想得到浓度为10%的盐水,应加水多少克? 有一种含盐率为百分之二十五的盐水100克,如果把它变成含盐率为百分之二十的盐水,需要加水多少克? 有含盐百分之20的盐水若干,加水100克后,浓度将为百分之15.如果要把浓度继续降低到百分之8,还应该加水多少克 mustnt have done与cant have done区别啥区别 bear with me 人大如何提高依法履职水平 it is+adj+从句 （五年级上册17课） 为什么要描述父亲神态和外貌? 父亲心中只有一个念头是什么?从中可以看出父亲怎样的品质 辩析put up with,bear和stand谢谢了, 吴儿善泅者数百的意思 有带艹字头又带月的字吗 吴儿善泅者数百,······腾身百变,运用哪些动词?作用? 定于从句问题① He has three sons, none of __A___ is a doctor. ② He has three sons, but none of ___B_ is a doctor. ③ He “吴儿善泅者数百”这个句子该怎么翻译? 定于从句中的问题Is this the reason why (for which) he refused our offer?这就是他拒绝我们帮助他的理由吗?如果这个句子不用定语从句做 for应放在谁的后面啊 是这样么This is he refused our offer for the reason. 关于定于从句的问题【2012全国卷II】⒏That evening,___ I will tell you more about later,I ended up working very late.A.that B.which C.what D.when为什么是选B呢?后面的句子不是完整的句子吗?前面应该填副词啊 请问“投机取巧”的英文是什么?投机取巧用英语怎么说? 这些带艹的字与草有关吗 问一下这几个从句的改法1.I met someone who said he knew you.改成:someone whom I met said he knew you.2.The girl whom I spoke to was a student 和The man to whom I spoke was a foreigner 这两个句子中的TO一个是放在关系代词的 请问这个题目怎么改成从句?怎么样改为从句：The lady is tall.Her bag is black. I am going to Hong Kong next week.改为John said( )We will aii miss you at Millfield.改为John said( )直接从句改间接从句 帮我改成从句谢谢'There are so many good player,like yao Ming.He is the fabulous player 定于从句的方法 粤菜的特点 流芳百世的反意成语 关于定于从句的疑问,请指教The books which are on the counter are mine 这句为什么吧are mine 放在后面The books are mine which are on the counter 这样可以吗?如果不行为什么?I have a sister who lives in paris 这句可以 已知函数f(x)=x^2-2|x|-1,试判断f(x)的奇偶性 若函数y=(k+1)X^k的绝对值 是正比例函数求函数的解析式Y=(K的平方-1)X是正比例函数求K的取值范围 We want someone to design the art museum for us.—________ the young fellow have a try?为毛不用 Need 用Shall We want someone to design the new art museum for us.( )the young man have a try a May b ShallWe want someone to design the new art museum for us.( )the young man have a try a May b Shall c WIll c Need为什么不能选C阿? We want someone to design the new art museum for us.( )the young man have a try a May b Shall c WIll c Need