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物理中打点计时器的具体操作步骤是什么要具体. 学懂《新概念英语2》的来!把下列句子改写成被动语态1.They make machines in that factory2.Every body likes this song3.He dose not show the stamps to me4.People do not grow rice in the west of Japan5.He often helps Tom when Tom is i 埃及最伟大的法老是谁?拉美西斯是吧? 新概念英语（一）需要多长时间学的懂? 关于电磁打点计时器的问题,若电磁打点计时器振针在纸带上打出的痕迹不是间隔清晰的点而是间隔清晰的短画线,其可能原因是什么最好能解释下为什么 交通红绿灯 十字路口的灯 只有直行和向左转 什么时候可以向右转 十字路口直行绿灯不亮能不能过去?这个路口的灯是箭头的那种,平时经常从这走都是直行绿灯时（左转是红灯）,然后直行等变红再左转的.但是今天晚上直行绿灯不亮,当左转绿灯的时候（这 十字路口的圆形绿灯亮时,可以直行和左转弯和右转弯吗? 十字路口绿灯亮时能不能左转弯 my father said"your new shirt is very nice."间接引语 Your shirt is very_________(smart)用适当形式填空 什么是细菌的周质蛋白?它有什么类型?如何提取它? 革兰氏阳性细菌细胞膜蛋白提取方法膜的总蛋白,能得到的越多越好,如果有可能的话帮我付个参考文献呗,我想参考文献里的提取的蛋白来优化方法, 如何提取格兰仕阳性细菌的全蛋白?尤其是针对芽孢杆菌. 提取细菌蛋白可以用rt-pcr吗 求帮改ielts作文,谢谢目标6分,请指点语法错误,是否偏题了,如何改进,感激不尽题目：Many scientists believe that now we can study the behavior of a three-year-old child to see whether they will grow up to be criminals. To wh 雅思帮忙改小作文~Thischart illustrates the different choices of accommodation in Evonia among threeage group 17 years old to over 46 years old. In theage between 17 and 19, people are prefer to shared rental accommodation andhostel accommodat 我爸爸是我所认识的人中最好的,用英语怎么说? 埃及历史上有几位法老? 埃及有几位法老 埃及有几位女法老?分别是谁?第几王朝?那么埃及艳后呢?她不是么? 埃及法老共有几位?不要乱粘的! The computer is widely used in education and some people think teacher do not play important role in the classroom.To what extent do you agree.Technology is advancing at a staggering rate especially in terms of computers.It is not uncommon that most 麻烦修改一下雅思大作文Some people believe that the shortage of fossil fuels will lead to the replacement of alternative energy like solar system and wind.To what extent do you agree or disagree?As the environmental problems on this planet 帮我看看这篇雅思小作文,剑5 Test2 Task 1Illustrated are two column graphs,showing the two reasons for learning among students of five age groups (under 26-over 49) and the support situation by employers.It shows a moderately decline of stu 请帮我修改一下雅思小作文,The graph reveals the requirement of electricity in England during typical days in winter and summer.The following chart describes what the electricity is used for English home in an average level.We can clearly l 细菌中含有清蛋白吗?《生化》中说到“所有生物都还有清蛋白和球蛋白”,那细菌中也有吗? What's your dream? 想找个老外交朋友 ,练习英语的同时能够感受中西方文化的不同不知道有没有老外肯教我呢?如果有,那真感激不尽! 每十个新加坡人中有九个是中国人,英文怎么说? 求一篇英语作文,主题是what is your ideal transportation tool?三百词左右.词汇不要特别难懂 雅思G类小作文,You rent a house through an agency.The heating system has stopped working.You phone the agency a week agobut it has still not been mended.Write a letter to agency.Explain the situation and tell them what you want them to do about