hamilton回路问题

eigher..or、both..and和neither..noreigher...or...、both...and...和neither...nor...的用法分别是什么 什么是儿茶素? 它有什么作用?儿茶素是如何发挥减肥作用的?最近看立顿刚推出的立雅茶,突然听说到儿茶素这个东东. 英语翻译第一个回答的给分 what is the remainder when 63 is divided by 8,为什么答案是0? have been done和 have done听人将前者是现在完成时的被动语态,后者是现在完成时,但是像I have been to shanghai.这又是什么时态呢?有点混乱.请问I have been studied English for 10 years.这怎么会是被动呢?请详 GRR数学.when x+2 is divided by 5 the remainder is 3,the remainder when x is divided by 5when x+2 is divided by 5 the remainder is 3,the remainder when x is divided by 5和2 的大小.remainder是余数的意思,到底是（x+2）除以5的答案叫 being done,have been done ,have done,done在每个句子中怎么区分啊?从简单易懂的角度上去讲,语法角度和时态角度懂行,这些词可以充当哪些句子成分要原因 when x+2 is divided by 5 the remainder is 1) when x+2 is divided by 5 the remainder is 3.question:the remainder when x is divided by 5 和2比较大小2 ) two researchers spent a total of 35 hours on a certain project.one of the researchers spent 25 英语的现在进行完成时态是怎么构成的?have being done 还是have been doing?我想表达这个：“我们已经合作了这么多年”，该如何说？ neither...nor & both...and & either...orwe can write and read.Can it be change in thatwe can either write or read.or it must be use" both and"we can both write and read.please tell me in detailthanks a lot 【化学 茶叶】茶多酚为什么是中性物质?茶叶中的茶多酚 结构有羟基 为什么是中性物质呢? 顺便再给个某个茶多酚类物质的结构式吧!我有一种理解，茶多酚是多羟基物质，虽说应该显弱酸性 GTP参什么才能形成物质的合成代谢 For example ,what ____ (be) ten and ten.It's twenty have been doing是什么时态?不要说是过去时间里开始、并持续到现在,一直在进行的（或刚结束的）动作或状态,要说明确,比如：现在进行时例句：--I ‘m sure Andrew will win the first prize in the final exam neither either neither nor either or both and 怎么用 have+been是什么时态 请问have been这个时态一般怎么用 这个时态的题目 尤其是句型转换和按适当形式填空做不来! Taking a boat must be a lot more fun than taking a bus.中fun是作不可数名词,为什么是不可数名词作形容词不可以么?还有就是为什么是作名词?有什么规定的么?还是习惯用法?还是什么呢... talking a boat must be a lot more fun than taking abus 为什么用more Do you like to meet people 的中文意思 Now more and more people get to know the importance of doing sports.It can bring fun (16)us and It.can also make also make us(17).(18)what should we do?first,we should choose our favorite ones from (19) kinds of sports.The sports must be right for us More people are getting to know the _____ of environmental protection.(importance) 英语口语问题回答 how do you know that people attach more importance to their health now? More and more people come to know the important of water.Water isvery important for l---- things.We need water to drink ,to cook food and to clean o----. The boy ______(run) to the door and opened it. 89.when I was about to go out,the door opened----------89.when I was about to go out,the door opened----------A.of itself B.by itself C.oneselfD.for itself has been doing have been done区别 have been doing sth had 加过去分词 have has 加过去分词 分别是什么时态?求什么区别?最好有例句、、 i has been doing 还是i have been doing 用(turn left)(turn right)(go straight)(north)(west)(east)(south)分别造一个句 这段话里的radio是什么意思如题 以上value值的含义?