dna的二级结构是什么

four-year-old和middle-aged 杠表示是什么? One 15-year-old in four is regular soker,according to made in 27 countries in Europe and the United States,Canada and Israel---by Edinburgh University together with the World Health Organization.Please translate. “英雄失去理想,蜕作庸人”中的“蜕”可否换成“变”字?为什么 Such tasks are ____ the capability of average kids in our school. I must sdmit your help is___greatvalue to our improvement.The party was organized ____her knowing anything about it.用适当的介词填空,我的英语比较差,麻烦你们告诉我 Such ( )our plan for the fulture.such ( )his words that he told usA.are B.is 这两个问题咋选? a_____ such as dancing and drawing are welcome in our schoolhis r____for leaving the company was too little money I will help you改为一般疑问句 I will help you改为否定句 All I WILL HELP YOU中文是? depart for 和set off的区别要求:要有例句说明 C语言OJ 提交提示 “Time Limit Exceed”Description 我们知道人民币有1、2、5、10、20、50、100这几种面值.现在给你n(1≤n≤250)元,让你计算换成用上面这些面额表示且总数不超过100张,共有几种.比如4 another available of say ask has for look come take Hi Jim,You ask me to go swimming next Sunday.Thanks a lot for(1)____________me.I’d like to go with you very much,(2)____________I am sorry to say that I can’t go.I’m busy and I(3)____________h Nancy likes s( ) on real ice jack threw the papers on my desk ."Next time you want to change anything ,ask me first,"he said set out,set up,set off,set start off for 英雄失去理想,脱作庸人,可厌地夸耀着当年的功勋；庸人失去理想,碌碌终生,可笑地诅咒着眼前的环境.4.理想开花,桃李要结甜果；理想抽芽,榆杨会农阴.请乘理想之马,挥鞭从此起程,路上春色 Do you have any( )in studing EnglishA success B succeed C successful 为什么说英雄失去理想,蜕作庸人;庸人失去理想,碌碌终生? There is no_________（different）between his pen and mine.There is no_________（different）between his pen and mine. 我有一些5便士的硬币想运到英国当然是多了才想运到英国,这些东东在国内不可以流通,银行也不给兑换,所以我只好再想办法运到英国.会面临哪些问题需要处理?说句实话吧,我就是在邮币市场 有两个英国便士硬币,一个是银色的,正面是女皇头像,上面有英文字母是ELIZABETH II 和D.G.REG.F.D.是7个棱的.反面是TWENTY PENCE 1989 有一个图案是上面一个皇冠和下面一朵花.就是这样的.另一枚硬币 Whom would you rather ___,Mike or Jack?a.have goneb.have go c.have to god.had go选什么,为什么 Lily is a very thoughtful girl and she can p___ everything well. I‘m sorry to have you waiting so long for Marcia ,and I’m afraid it'll be ten minutes -----------she comes backA before B after C until 初中英语I'm sorry to have you waiting for so long for Marcia,and I'm afraid it'll be ten minutesI'm sorry to have you waiting for so long for Marcia,and I'm afraid it'll be ten minutes______she comes back.A.before B.after C.until D.since老师说 Is the girl his cousin?与Is Mike his father的肯定回答是yes,it is还是he\she is who is the little girl it's me . 关于新概念英语第三册15课题目：fifty pence worth of trouble新概念英语第三册15课的题目是——fifty pence worth of trouble于是我查了牛津高阶得到以下解释—— ten dollars', ￡40, etc. ~ of sth an amount of sth He bought himself fifty pence worth of trouble后面的worth of trouble是什么用法?这句话句子结构怎么怪怪的worth不是一个动词吗？能不能详细一点 —Do you think yesterday’s math problem was difficult?—Yes.I could work it out.谁能帮我解一下谢 ----Do you think yesterday's math problem was difficult?----Yes.I could ____ work it out.A.hardlyB.easilyC.finallyD.nearly