《别笑!我是英文单词书》里面的单词是初中的还是高中吗

我曾经在这里
was是过去时态,要体现.

压强通过水银传播,在水银面上形成向上力,两力平衡.

先化简 X^2-26X+30=0
然后用ax^2+bx+c=0的方程公式来解
x＝（-b±√（b^2－4ac））/2a

我觉得也是
自开朝时,实力大,北元不服,打,打到服为止
到崇祯时,千窗百孔,实力不济,谁打我我也不服,直到自己上吊死
事实上整个朝代,就没有向别人屈服过

镁离子是Mg2+
化合价你需要记忆下,写在元素右上角的就是其化合价
亚铁离子：Fe2+,3个亚铁离子：3Fe2+
不会笑话任何人,所有人都是学习者

能被3、4、5整除肯定是3、4、5的最小公倍数,60
所以再加1就行了 哈 就是61啦

买后面两本吧
《别笑!我是英文单词书》主要收集了英语圈常用的日常词汇,《别笑!我是英文单词书2》则将重心倾斜到我们周围的“社会”,所有的单词都与“社会”发生关联.这两本书的根本宗旨就是减轻负担,消除压力,轻松阅读,自然记忆.
《别笑!我是英文单词书1》和《别笑!我是英文单词书2》都在某种程度上涉及了我们这个世界的核心主题,对各位读者提高英语能力必将起到切实的帮助作用.另外,阅读这本书的时候,请您务必放松双肩,带着愉快的心情去阅读,就像翻阅轻松休闲的杂志.

这是不可能的,即使你不考虑摩擦和空气阻力,你也无法忽略电池的内电阻以及电路线路的电阻上的能量损耗,而且一个物体,只要不是绝对零度就必定会以红外线的方式向周围辐射能量.

动词ing

英语成绩想要有所提高,就必须多读多记,另外准备一个可以随身携带的小本,用于收集单词,比如阅读完形以及其他各种资料中的词汇.至于为什么是随身携带的本本,我想你应该明白…只要你稍微花点功夫,就会有明显的提高…祝你学习愉快

用km/h：时间t=6min=0.1h,s=8km,v=s/t=8km/0.1h=80km/h
用m/s：时间t=6min=360s,s=8km=8000m,v=s/t=8000m/360s=22.22m/s

flat 还是fiat?后者是菲亚特,一种汽车.菲亚特里的一场大火

关于合理饮食的讲演稿
Keeping a good diet
Hello everybody! It' s my honour to share some of my opinions with you all, which concerns our topic today- the importance of keeping a good diet.(若背后有写上主题的黑板或屏幕,请现在指向它,向听众展示今天的主题.）
Since most of us lead a busy life in school, I bet many of you often leave home without breakfast, then during the break you choose the snacks instead. On the other hand, Some students eat too much and become obese. Moveover some even develop a habbit of dietary bias .They only eat what tastes good or looks very nice.
As we all know, people are easier to be prone to an unhealthy condition because of these unbalanced lifestyles. Our bodies comprise what we eat everyday, so it's essential to keep a good diet in our daily life. But how?（这样更口语化）
From where I stand(靓睛之笔), effective measures should be taken and here are some that I consider should not be overlooked(用上固定句式显得更有逻辑性). Firstly we should have a great taste of diverse food. In every meal we can eat rice,vegetables,fruits,meat and so on, so we can take in various nutrition that our bodies long for(用上词组更地道).Secondly we should eat a certain volume of food at a certain time,and avoid devouring and irregular eating, which allow us to accustom our gastrointestinal system to what we eat. Finally, we'd better not to stimulate our stomach(had better to后跟动词原形), and avoid eating what is too hot or too spicy such as chilli and pepper or drinking alcohol.If you follow these advice, I think eating can be an enjoyable part of your life.(最后这句挺好的)
That's all. Thank you for listening!
1、修改已在文中标识了.部分句式我做了修改,应该是改的更地道顺口,意思无改变,但请楼主按个人演说的语气再作参考.
2、如果要用Also 开头,就一定要加And 哦,因为also只是副词——eg, And also, ...
3、在句子间您注意用and also等连词很好,但除了这,其实还可以用even这个词,如第二段第三句,这是外国人很喜欢用的,可起强调的语气.
另外您还可巧用moreover, what's more, in addition, besides 等更好的连词,不仅能让句子更通顺,还能增加口语化的韵味.
4、总的来讲,思路不错,很有逻辑性.虽然我做了修改,但是在实际演讲当中,最重要的不是语法,而是语气,在交流当中是经常会有语法错误的现象出现,所以楼主可以不用太拘泥于语法.
演讲时最重要腰挺直,眼睛可适时看稿,但不能多次,切记与观众一定要有眼神接触,且不能只是场内一个方位的观众,每个角落的都要大致扫到.另外在演讲时,请注意语调要有重有轻,让观众听得出哪里有强调语气.
另外关于楼上热心网友所说的建议楼主少用We'd之类的用法,虽然他说的这个具有很多意思是对的,但事实上大多数英文小说中都是这样用的,外国朋友也都喜欢这样用,并不会影响阅读,只要注意语意使用就可以了,楼主可以放心.
英文演讲主要听的是内容和语音,大家的英文水平都是差不多的,请给予自己信心哦!
演讲时适时加上肢体语言,表现大方举止,那就更棒咯!望楼主有个美好的演讲.
以上均为个人长期经验,望采纳.

只读单词
一遍英文 一遍中文

(10 × 10 - 4) ÷ 4

那是用来计算浮力的!木头完全侵入水中所排除的水比木头重,所以浮力大于木头重力,因此木头根本不可能完全侵入水中,而是部分侵入水中达到力的平衡.
铁呢,完全侵入水中排除去的水也达不到铁的重量,所以铁进入水中下沉!
在这里你注意!木头和铁同样重但比铁体积大!在水中可以排除的水也比铁多!

语法问题还真不少,单复数,语态时态等.改了很多.句意和基本语序就不改了.自己再check下吧.
Do you agree with the saying that it's better to make friends with intelligent people than with people who have a good sense of humor.
Making friends is indispensable for everyone.There is no denying that intelligence(改名词) and humor are two vital features of a good friend.Some people,however,may claim that it is better to make friends with intelligent people than with people who have a good sense of humor.As for me,I can't agree more with it.
To begin with,intelligent friends often enlighten us and teach us something useful which is a benefit to our life and career.It means that we will be influenced by intelligent people and incline to gain some characters from them.Most importantly,intelligent friends also have a proper goal.They manage their time for their goal,implementing it and complementing by themselves,so they have a relatively high probability to succeed in their life.Staying along with a friend who is intelligent like this,we will gruadually become more intelligent too.We can learn a lot of wholesome things from them,but a friend who have a good sense of humor just can bring us jokes and fun.In our daily life,I think intelligence is more useful than jokes.
Furthermore,an intelligent friend helps us more when we are in trouble.Compared with the humorous friends,an intelligent peole thinks more about the problem in a rational way.Useful suggestions and help from them are of much more importance to resolve the trouble we meet.For instance,if I am in trouble,those friends who are intelligent are more likely to put forth constructive suggestions for me,while humorous friends may make a joke on me in a improper circumstance.Although their jokes will relax me temporary,but in fact it is suggestion that resovles the problem at this moment while jokes can do nothing.
Nevertheless,a humorous friend is also benefical to us.We will have fun and happiness when we stay with them,which probable leads to a high efficiency in our work and study.To sum up,it will be a pleasure to make friends both with intelligent people and humorous people.If I have to choose,however,I prefer to make friends with intelligent people than with people who have a good sense of humor for the reasons above.

已知：V=5KM/h t=45min=0.75h
求：S
S=vt=5KM/h*0.75h=3.75KM
答;AB地的距离是3.75KM

我猜是网络符号语言,对你微笑眨眼的意思

没事,慢慢学,能合并的根式必是相同次数的根式,比如说都是2次,也就是跟号上的小数字一样时,由于二次根式的2省略,所以a-2=2,a=4.且根号下的数也应相同,2a-b=2b-1,b=3

学习一些交际用语

I study the design problem of electric vehicle communication device based on CAN bus,the communication system of the electric vehicle is controlled by modern sensor technology,computer communication technology for signal acquisition,the electric car interior all some facilities,body control provides effective and safe,so that electric cars in use can make the control more convenient and intuitive understanding of the operation of electric vehicle and can help the driver to simple.This design is a communication based on CAN bus,display control through the CAN bus for all equipment in the body.The hardware of the system mainly consists of singlechip,CAN controller,a display part,system modular design in hardware and software,the concrete realization of the single-chip microcomputer as the control core,the digital quantity input,analog output module,and CAN interface circuit module and liquid crystal display module.The application of CAN bus,simplifies the electric circuit structure is the internal communication and control more convenient.

carry out/conduct/pursue/launch a investigation/survey

爱.
ai.
就这个发音.

刚开始时感觉挺有信心的,热血沸腾的感觉,很有奔头,可后来随着时间慢慢过去,心就冷下来了,就扔在一边了.如果你确认自己有很强的自制力,可以控制自己的话,那你就会收获很多,否则,劝你还是三思而后行.

方法1：在草纸上打上重要的公式、定理,或重要的必背诗文,循序渐进,必有收获.
方法2：在卫生间马桶旁边放上必读课本,课本里夹上十元钱,钱上黏上一个小纸条,写道：“完成xxx任务可立取之,否则取消使用本卫生间的权利.”

因为 ∠BOC=2∠COE
所以 ∠BOE=3∠COE
又因为 ,∠AOF的度数比∠COE的度数的4倍小8°
设∠COE为 X 度.
4X-8 + 3X=180-90 →4X-8表示∠AOF度数,3X表示∠BOE
7X=98
X=14
答：∠COE为14度

开关合上时,由于开关的电阻远小于灯1,所以灯1被短路,灯2发光;
开关打开时,由于灯1和灯2串联,都发光;但灯2的电压小于之前,光会变暗.

分解者与消费者都要靠消耗有机物才能生存.
两者的本质区别是：
分解者“只摄取的是没有生命的有机物”,如尸体,枯草,粪便等.
消费者“能摄取的是活的有机物,也能摄取死掉的有机物”,如狼吃羊,鹰吃腐尸.
由此可知：病毒就属消费者了.

胍
guā
ㄍㄨㄚˉ
有机化合物,是制药工业上的重要原料,供制磺胺脒等.
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