OSPF互联COST值不同应该算哪边的COST?

In order to arose the interest of English studying and imporve our English. Some of my classmates who love English and I set a website. We really want this website can help us learn English easily and we have great interest in learning English. There are lots of rich English materials. Such as English exercises, Foreigh culture, English story and so on. We also have English chat room, showing English composition, Exchange study experience and so on. Welcome to our website.

Dear fellow students,
I’d like to introduce you to a new website — easyenglish.com.
The purpose of setting up such a website is to develop your interest of learning English and make learning English easy and enjoyable for us students. A wide variety of English materials are available in this website, such as English exercises, foreign cultures, English short stories, etc. And you can also enjoy chatting in English here with other English learners so that you can improve both your oral and written English. Furthermore, if you’d like to show your own English writings and exchange your English learning experiences with others, this website is your best choice. Meanwhile, your English can get improved by being corrected by others.
Welcome to surf this website and be a member of it!

解题思路：根据人体中铁元素的存在形式判断，铁在人体中是以化合态的形式存在的．

A、在人体中铁不是以铁单质的形式存在，故A错误；
B、人体中的铁元素是以无机盐的形式存在的，这里的铁是指铁元素，故B正确；
C、在人体中铁不是以氧化铁的形式存在，故C错误；
D、在人体中铁不是以四氧化三铁的形式存在，故D错误．
故选B．

点评：
本题考点： 元素的概念．

考点点评： 食品、药品、饮料中的某些成分大都是指的元素，它们以化合物的形式存在，常用其质量分数表示含量．

hi,bonita.
Everyone needs friends. A friend can give us help and share our difficulties and happiness. But how can we make friends?
First, to make friends, you must be friendly to others. Smile at others and you are sure to get a smile in return. You should try to make a stranger feel at home wherever he happens to be. Think more of others than of yourself and never judge a person by his appearance and clothes.
Second, friends should negotiate instead of quarrel. When you don't agree someone, please discuss with him.
Finally, never believe in those who leave you when you are in trouble. And never leave your friend when he is in trouble. Remember, a friend in need is a friend indeed.
Friends should be faithful to each other. So long as you can put your friend's interests in front of yours, you will have a lot of good friends.

（1）第 2句,修改为：然而,在互联网快速发展的同时,个别网站也存在着传播不健康的信息、提供不文明声讯服务等危害社会【的行为】
（2）第 3句,修改为： 营造健康文明的网络文化环境,清除不健康信息,已成为新时期精神文明建设的 【当务之急】

（1）第1句句序不当,应改为 轻博客”成为了2012年互联网发展的热门趋势.（热门和趋势互换）
（2）第2句搭配不当,应该为 都致力于为用户提供（提出改为提供）生成内容,表达自己的平台.（3）第3句句式杂糅,应该为 微博则具有社交和传播的特点（更倾向于改为具有）或者改为
微博则更倾向于社交和传播.（去掉的特点）
（4）第4句成飞残缺,应该为 轻博客的用户能够在更简便的表达沟通中表达自己对生活的态度.（加上的态度）

From a utilitarian point of view, learning English is not as some people on the Internet thatcatharsis as useless. Must first be clear that, since the English world leading modern, globalcivilization and progress. In science and technology, the first industrial revolution origin and the main driving force is in the UK; the main sponsor of the second industrial revolution is the United States and Germany, and in second after the industrial revolution, the United States as the world's first power, began a full range of influence on the world; and the information technology revolution is more completely by the U. S. the dominant.
The progress of technology does make almost become the global civilization advanced and core of the English speaking world, single refusal does not change that. Detachment andrefused to advanced is not to make people behind closed doors burst out new skills, on the contrary, only the core of world civilization more and more far distance.
1 English world leading technical progress since modern times

I am a big fan of the US TV series, most TV series are about the supernatural things, like the ghost. I like to take adventures, to have a look at the world and get to know more about the world. I mus...

气温升高，固态的微胶囊物质会变成液态，发生熔化现象，会从人体吸热，人因此会感到凉爽；
气温降低时，微胶囊物质会凝固，凝固时需要向人体放热，人会感到暖和；
故选D．

解题思路：许多传统民居建筑风格往往与当地的自然环境是相适应的，如印度尼西亚和西双版纳地区气候湿润，房屋屋顶坡度较大，便于排水，多采用双层和架高的方式，既隔热又便于雨水的排泄；黑龙江省的漠河冬天严寒，墙体厚，注意防寒、保暖，窗子大，采光条件好．

西亚地区主要为热带沙漠气候，气候干旱，多沙漠，其房屋特点是墙厚、门窗小，可以减少阳光和热风的影响，也可防止风沙进入．故选项C符合题意．
故选：C．

点评：
本题考点： 人民生活与地理环境的关系．

考点点评： 本题考查不同地区的民居特色，结合气候特点理解解答即可．

Since the weather is bad,I prefer to going shopping rather than go camping.
Which bag do you prefer,the green one or the purple one?
It makes me exciting to receive a lot of new year's gifts.
Nowadays,the Internet makes lots of things easier and more convenient.
I find that it's difficult to learn how to receive politely.
(I find that it's difficult to learn the art of receiving.)
希望对你有帮助~

VPN作为一种新型的网络技术,能够利用Internet或其他公共互联网络的基础设施为用户构建自己的专用广域网络,并提供与专用网络一样的安全和功能保障.本文介绍了VPN技术的概念、工作原理、关键技术、体系结构,并对这项技术的发展、组网方式、市场前景、所应用的领域以及在银行系统中的应用作了详细地分析和阐述.
翻译结果
VPN took one kind of new network technology,can constructs own usingInternet or other public internet infrastructures for the userspecial-purpose macrozonality network,and provides with the privatenetwork same security and the function safeguard.This articleintroduced the VPN technology concept,the principle of work,theessential technology,the system structure,and the domain as well aswhich to this technical development,the network way,the marketprospect,applied should serve as in detail the analysis and theelaboration in the banking system.

上网的利与弊
随着时代的发展,上网已经变成了非常普遍的事.不论是大人还是小孩,只要提起电脑,都会想到上网.可是,上网是有利也有弊.
我知道很多人去上网,主要是为了玩游戏,这样很耽误学习.所以,有些人认为,中小学生缺乏自制力.
但是,有很多人赞成上网,为什么?因为上网能给人们提供很多帮助.首先,网络就像一个图书馆,能很容易的查到很多资料,比查阅书籍速度快；其次,在网上可以读到更丰富的新闻；此外,上网还有其它作用,例如,E-mail,网上通电话等等.
其实,上网有它的益处与弊处.我们利用它开扩视野,学习知识,但一定要掌握好分寸.

解题思路：此题考查的是探究“酸雨是否能够影响种子的萌发”呢，可以从探究性实验的要求环节和种子萌发的条件方面来切入．

（1）②在研究一种条件对研究对象的影响时，所进行的除了这种条件不同以外，其它条件都相同的实验，叫对照实验；一组对照实验分为实验组和对照组，实验组是接受实验变量处理的对象组；对照组是不接受实验变量处理的对象组．因此对实验组每天在纱布上喷洒适量的“模拟酸雨”（用硫酸配置的稀溶液），对照组每天在纱布上喷洒等量的清水（等量蒸馏水），以形成对照．③一段时间后，观察两组大豆种子的 萌发情况（发育状况）
（2）种子萌发的外界条件是适宜的温度、充足的空气和一定的水分．因为只有这三个条件同时具备时，种子内的营养物质才能转变成溶于水的物质被种子萌发时利用．
故答案为：
（1）②等量清水；
③萌发情况；
（2）适宜的温度、充足的空气和一定的水分（任意两点均可）

点评：
本题考点： 探究酸雨对农作物的生长影响；种子萌发的条件和过程．

考点点评： 解答此类题目的关键是知道对照实验只有一个变量，其它量相同和种子萌发的条件．

①只追求外在形式或数量而不讲究实质内容，忽视质量的做法。（基本意思对即可）
②药品市场中出现的药价与药的实际成本不符的现象。（基本意思对即可）

A

③④项不符合题意，与材料的要求不符，故答案为 ①②。

这个就留给你自己回答吧!

小题:选D
小题:选C
小题:选D
小题:选B


小题:由于各国在网上信息流量输入、输出的不平衡．所以沟通并不肯定更有效。
小题:网络信息采用何种语言直接影响传播。
小题:有可能，但不是必然。
小题:据第3段可知．因特网除方便、迅捷外，还有真实、全面等优点，故D不舍文意。

（1）当050时Y甲=0.21X+5Y乙=0.25X(2)当00.25X+5恒成立,不可能花的钱一样当X>50时0.21X+5=0.25XX=125（3）当X=150时Y甲=0.21X+5=36.5Y乙=0.25X=37.5Y甲

我爱喝茶,尤其是绿茶.虽然绿茶不如花茶香,但是书上说绿茶是保健饮料,而且可以抗辐射,抗癌和坚固牙齿等功效.再加上它那独特的韵味,使我非常喜欢.
一天中午,闲来无事,我突然想泡茶喝.打开电冰箱找茶叶,看见里面有好多茶叶,什么金莲花、野菊米等,还有铁观音,安吉白茶等还没拆开的.听说安吉白茶是很有名的一种绿茶,便取出少许,放入茶壶中.这茶叶不像以前喝的茶叶一样是墨绿色的,它是青绿色的,条条交错,十分好看.我把滚烫的开水冲入茶壶,玉簪似的茶叶浮在水面.过了片刻,“玉簪”化开了,叶芽像针一样悬在水中；叶片像小船一样漂在水面上.黄绿色的茶叶层层叠叠,在水中荡漾.由于茶叶放的比较多,清清的茶水渐渐泛黄,茶沫子依然还附在茶叶上.香气也飘散开来了,这茶香让人心旷神怡.在茶香笼罩下,呷一口茶水,更是神清气爽.
可是,到了晚上,却翻来覆去睡不着.半夜时分,我干脆起来,欣赏夜景.乃拜美味茶水所赐也!
我还爱好天文.
原来阁楼上架有一台天文望远镜,平时学习紧张,久置不用,被收了起来.七夕那天晚上,我把心爱的望远镜拿了出来,急忙忙的组装起来.
这架望远镜的镜筒是深蓝色的.镜筒的前端有黑色的罩子,镜筒后面有一根黑色的管子,可以直接把目镜放在里面,也可以先放折射镜、加倍镜、正像镜等,然后再放目镜.镜架是黑色的.木质的三脚架还可以根据需要伸长或缩短.镜架上还有一个小平台可以放更换的目镜等.
好不容易安装完毕,已是汗流浃背.把望远近小心地搬到晒台上,把镜筒朝向月亮,调整焦距,38万多千米外的景象便呈现在眼前.可惜,当时部是满月,只看见3个较大的环形山和2片月海.
第二天早上,我又用望远镜看远处的楼房.等我调好了焦距,两三百米外的公告栏上的公告便清晰地出现了.我现在只记得上面写得是什么“温馨提示”,关于防盗的.我还看见不少人.其中有的人在晒被子,有的在到垃圾,还有的在健身.真的很有趣.这就是我的暑假,清闲、欢乐.

EasyEnglish which place you can't understand and where you fire !
中文：EasyEnglish 那里不会 点哪里,

lot of 就是很多的意思,东西是隐藏了的意思
如果帮到你,请记得采纳,O(∩_∩)O谢谢

拓扑结构.计算机网络拓扑是通过网络中节点与通信线路之间的几何关系表示网络中各实体间的结构关系.

万维网 就是因特网

解题思路：解决此题要知道熔化是物质从固态变成液态的过程，熔化时需要从外界吸收热量；物质从液态变成固态的过程叫凝固，凝固时需要向外界放出热量．

气温升高，固态的微胶囊物质会变成液态，发生熔化现象，会从人体吸热，人因此会感到凉爽；
气温降低时，微胶囊物质会凝固，凝固时需要向人体放热，人会感到暖和；
故选D．

点评：
本题考点： 熔化与熔化吸热特点；凝固与凝固放热特点．

考点点评： 此类问题是考查物态变化及变化过程的吸热和放热现象．

Mary Smith is a 15-year-old student at Wheart High School in New York. She's good at math and science. Her sister is 17, and her brother is 13. She loves to travel and wants to come to China someday.

C

Welcome to Baishan Mountain Hotel
Baishan Mountain Hotel is now open for business.
Our hotel stands 500 meters away from the entrance to Baishan Mountain. It has 20 single rooms and
15 double rooms, all with hot showers. A single room is 100 yuan and a double room 150 yuan for one
night. You are advised to book in advance. The hotel serves three meals a day and there are Chinese food
and western food for you to choose from. You can also enjoy yourself at the café drinking tea or coffee
in the evening. We also have a swimming pool, which is open all day and free of charge.
All are welcome!
答案不唯一

Baishan Mountain Hotel is now open for business. Our hotel stands 500 meters away from the entrance to Baishan Mountain. It has 20 single rooms and 15 double rooms, all with hot showers. A single room is 100 yuan and a double room 150 yuan for one night. You are advised to book in advance. The hotel serves three meals a day and there are Chinese food and western food for you to choose from. You can also enjoy yourself at the cafe drinking tea or coffee in the evening. We also have a swimming pool, which is open all day and free of charge. All are welcome! Nowadays, some of us students have formed some bad habits on campus. For example, some students leave the lights on in the daytime, or let water running after washing. Some leave over much food on the table after eating. Besides, waste paper and spoiled books can be seen everywhere. So it’s high time that we had to deal with the problems. As we all know, these bad habits will have a bad influence on our character and behavior. What’s more, they cannot only increase our cost at school and add financial burden to our parents, but also waste the limited resources. But how to reduce the waste? In my opinion, we should start with ourselves to save everything. Here, I’d like to remind my friends to take the lead in reducing the waste. Therefore, I’m sure, with everyone doing this bit by bit, we will change the present situation. Students’ Union

解题思路：（1）本题需根据喜欢足球的人数和所占的百分比即可求出参加调查的学生总数，
（2）用360°乘以喜欢“羽毛球”的学生所占的百分比即可得出圆心角的度数，
（3）本题需先求出喜欢乒乓球的学生人数即可将图补充完整，
（4）分别求出喜欢乒乓球类的学生人数和喜欢篮球的学生人数即可．

（1）参加调查的学生共有80÷20%=400人
（2）表示“羽毛球”所在扇形的圆心角度数为：360°×[400−140−80−80/400]=90°
（3）如图

（3）喜欢篮球的学生有：
1500×35%=525（人）
喜欢乒乓球类的学生有：
1500×25%=375（人）
全校喜欢乒乓球类的学生人数比喜欢篮球的学生人数少525-375=150（人）．

点评：
本题考点： 条形统计图；用样本估计总体；扇形统计图．

考点点评： 本题主要考查了条形图和扇形图，在解题时要注意灵活应用条形图和扇形图之间的关系是本题的关键．

解题思路：欧洲西部多为经济发达国家，这里集中了很多工业大国如德国、法国、英国和意大利，它们的生产规模大，工业部门较齐全，综合实力雄厚．其余国家则根据本国的具体条件，因地制宜的发展有特色的工业部门．
这一区域地形以平原为主，气候类型为温带海洋性气侯，适合牧草生长，所以适合牧业，所以他们通常以牛羊肉为食．

欧洲西部地形以平原为主，气候类型为温带海洋性气侯，适合牧草生长，所以适合畜牧业发展，因此他们通常以牛羊肉为食；结合选项．
故选：D．

点评：
本题考点： 欧洲人民的生活概况．

考点点评： 此题考查的是有关欧洲人民的饮食习惯和气候产业的关系，结合教材熟练掌握．

Welcome to Baishan Mountain Hotel
Baishan Mountain Hotel is now open for business.
Our hotel stands 500 meters away from the entrance to Baishan Mountain. It has 20 single rooms and 15 double rooms, all with hot showers. A single room is 100 yuan and a double room 150 yuan for one night. You are advised to book in advance. The hotel serves three meals a day and there are Chinese food and western food for you to choose from. You can also enjoy yourself at the cafe drinking tea or coffee in the evening. We also have a swimming pool, which is open all day and free of charge.
All are welcome

这句话翻译成英文应该是下面这样：
1. He often surf the Internet 2. Open a computer, let us practice using it. 3. We can search a lot of information from the Internet.
希望能帮到您,谢谢!

Last month I went to Beijing to visit one of my friends, because we haven’t seen each other for about two years and I got a holiday meanwhile. It is my first time to visit Beijing, which is always the dream city for all the Chinese. All the information about the city came from the books and TV, now I could see and get know of it by myself, how excited I am!

是英语吗

C

Dear David:
My name is Lihua, I'm a high school student from China. I'm writing to you because I know about you from an ad. As you are looking for a Chinese friend to study Chinese and culture, I 'd like to be your friend.
First, I will tell you how to read Chinese words, we can chat through the Internet. Second, we can communicate in Chinese by email. If you know how to type in Chinese, you can send email to me, I will check whether you write in a correct way. Third, if you have a chance to visit China, I will guide you to a lot of interesting places, where I can introduce our history to you.
Shall we be friends? I'm looking forward to your reply.
Sincerely
Lihua

粗的是电池电源 Uab为路端电压即外电压 (设粗电阻为R 细的则为2R)
I=E/R+2R Uab=I*2R=2/3E

专线互联 private line arrangement
城域网 metropolitan area network
异地备份different place backup

C

包括计算机网、数据通信网以及公用电话交换网等互联起来,组成一个跨越国界、覆盖全球的宠大的网络.

Baishan _ Mountain _ Hotel _ is _ now _ open _ for _ business.
Our hotel stands 500 meters away from the entrance to Baishan Mountain,and has 20 single rooms
and 15 double rooms,all with hot showers.A single room is 100 yuan and a double room 150 yuan for
one night and you are advised to book in advance.The hotel serves three meals a day and there are
Chinese food and western food for you to choose from.You can also enjoy yourself at the caf?drinking
tea or coffee in the evening.We also have a swimming pool,which is open all day and free of charge.
All _ are _ welcome!

答案不唯一

这个2B问题,有了高科技手段不用,非要 用看动物,看云 这种土办法.

6.5折.

问题一：甲网店 ￥=0.35X+5或者￥=（0.35X+5）*0.6
乙网店 ￥=0.25X+5或者￥=0.25X
问题二：用方程式表示就是0.35X+5=0.25X+5 或者 (0.35X+5)*0.6=0.25X
毕业太久了 忘记怎么解了!
问题三：甲网店是 （0.35*150+5）*0.6=34.5
乙网店是 0.25*150=37.5
那就是甲网店比较便宜!
好辛苦啊! 重温了下读书的味道!

春天来了,万物复苏,柳树抽出了她那柔嫩而纤弱的枝条.今天又下起了毛毛细雨,飘飘洒洒的,玄武湖畔一排排柳树隐没在茫茫的细雨之中,渐渐地消失在雾里.
远远地就看到一排垂柳,条条柳丝刚刚返青,绿影婆娑在微风的吹拂下像一层绿纱笼罩在柳树后的梅花,美极了.
秋光叠叠复重重,潜度偷移三径中秋天,没有春天五彩斑斓的鲜花,没有夏天茂盛异常的绿树,没有冬天纷纷扬扬的雪花,但秋天有果实累累的果树,给人们带来丰收的喜悦,到处都是瓜果遍地!
春天的江南是美丽的,风很柔和,空气很清新,太阳很温暖；大田里的麦苗像一片海,星罗棋布的村庄是不沉的舟,纵横交错的弯弯曲曲的河道,河边的柳枝吐了嫩芽,芦苇边钻出来放时透青了；河道里平静的水,从冬天的素净中苏醒过来,被大自然的色彩打扮得青青翠翠.
万里晴空,阳光灿烂.春姑娘晒得都眯缝起眼睛来了.那嫩绿的新叶,那田野的薄雾轻烟,象她的衣衫.随着她春意的步伐,那青青的小草,破土而出,简直要顶着脚站出来啦.

Welcome to Baishan Mountain Hotel
Baishan Mountain Hotel is now open for business.
Our hotel stands 500 meters away from the entrance to Baishan Mountain. It has 20 single rooms and 15 double rooms, all with hot showers. A single room is 100 yuan and a double room 150 yuan for one night. You are advised to book in advance. The hotel serves three meals a day and there are Chinese food and western food for you to choose from. You can also enjoy yourself at the cafe drinking tea or coffee in the evening. We also have a swimming pool, which is open all day and free of charge.
All are welcome

tourism is becoming one of worlds fastest growing service, and the popularity of internet also brings new marketing opportunities for the turism business.
嘻嘻,我可是找老外帮你写的

interconnection and interaction