(1/360)× 0.5nπ×3r×3r-(1/360)nπr×r=70 别给我乱写!

OK
无论什么时候都要大写.
例如：Are you OK?
I'm OK.
That's OK.

will 可以啊 一般就是

1.know转knew
2.reson换reason
3.was换is
4.sure换surely或for sure
5.你打错字了吧～aie是air,improtance是importance.但如果improtance的意思是对的话,请保留.（improtance=搭好）
6.had换has
7.of换in,或you‘ve换you’d
8.省略is
9.we‘ll换we
10.mine换me.
上述的答案有点不确定,但希望帮得上忙～

The environmental protection is the most major problem which in the modern life the humanity faces.Must solve this problem must start from foundation.First,must massively propagandize,enhances people's consciousness with understanding,strengthens the environmental protection consciousness.Next,must carry on waste recovery use,reduces to forest-tree's felling.Also must strengthen to white pollution processing,little uses the plastic product.Finally,must make improvement to clean aspect.Causes the city's appearance to be neater.For Earth's tomorrow,we must start from the now diligently,will want the well local constable to protect the environment.To this us proposes as follows suggests:Implementation trash classification packed in bags.Like this not only can reduce the environmental sanitation worker's work load,but also can even better basically arrive makes use of waste,to reduce the pollution,saves the resources.
Protect Environment
Many people are active in fighting against unfair treatment to colored people,women ,animals and so on.Right now I am talking about fighting for respect to our environment.Though the environment doesn’t have a mouth to deprecate what humans have done to her,she retaliates through action.In the early years the Chinese cut down large quantities of trees,at the source of the yellow river,which led to the disappearance of big forests and terrible floods.As a result,the Huangtu plateau which was once covered with grass and forests was turned into barrens that supported fewer plants.Another example was in several developed countries.Because many chemical factories discharged poisonous gas without filtering it,cities were covered with so much poisonous gas that people were killed by the air they breathed in.What horrible scene!
What we are suffering is only a small part of what the nature once suffered.If we don’t take action to show respect to the environment,we will have to face an increasingly awful situation.
Measures should be taken to protect the environment on which we are relying.First governments should forbid destroying vegetation,rivers and lakes,oceans,as and the atmosphere as well.Second voices should be made to announce the public of the importance of protecting the environment.Third enterprises should pay special attention to the effect they have on the environment and work out solutions for the problems.
Only by changing the way we treat the environment can we get along well with it.Only by saving the environment can we save ourselves.
1.Harmony with the environment is that we live in on Earth,who is a natural son,and not only to natural persons as the conqueror,as we all know,there is only one earth and the mountains on Earth,the animals.Plant human cells,if it damaged,destroyed nature organizations,to the eradication of mankind.Therefore,the environment must be linked with social ethics,character education and practice acts as an important element of it.Everyone must fulfil its responsibilities and obligations to protect the environment.
翻译：人与环境是和谐相处的,我们生存在地球上,人是自然之子,而不能仅把人看作自然的征服者,大家都知道,人类只有一个地球,地球上的山山水水、动物.植物是人类的细胞,如果我们把它损坏了,破坏了大自然的组织,等于消灭人类.因此,环境要与社会公德联系起来,与实践行为作为人格教育的一项重要内容来抓.每个人都要履行保护环境的责任和义务.

I can see but ignore you

△ABD中,正弦定理得AB/sinADB=BD/sin∠1同理,有AC/sinADC=AC/sin(180°-∠ADB)=AC/sinADB=CD/sin∠2两式相除,有AB/AC=BDsin∠2/CDsin∠1∵∠1=∠2,∴sin∠1=sin∠2
∴AB/AC=BD/CD设∠ADB=∠3正弦定理得AB/sin∠3=BD/sin(180°-∠2)=BD/sin∠2同理,AC/sin∠3=CD/sin∠1相除,得AB/AC=BDsin∠1/CDsin∠2∵∠1=∠2,∴sin∠1=sin∠2∴AB/AC=BD/CD

附加费结构图

温文尔雅,落落大方,脚踏实地,一丝不苟,表里如一,任劳任怨,废寝忘食,始终如一,锄强扶弱,智勇双全,遵纪守法,体贴入微,拾金不昧,聪明伶俐.

字典里只有10摄氏度差的.我用ORIGIN作表求的5摄氏度差值,个位应该没误差.小数位可能有+-0.1的误差吧.5摄氏度是17.0附表：(摄氏度/℃)/(溶解度/g)0/13.35/17.010/20.915/26.320/31.625/39.030/45.835/55.240/63.945/7...

happened
fished
listened
changed
talked
enjoyed
pushed
hated

heard
waited
wore
wraped
watched
cooked washed

我算是明白了,学英语就三招,学好三招就能走天下了!
第一招：过单词关.（可自行修炼,那得像扎马步一样的苦练.）（可师从新东方.还有“新东方背单词5软件”等等）
第二招：过翻译关.（个人觉得学好了英译汉,汉译英才能掌握英语的真谛.)(就像练功夫要练内功,要学心法）（我还认为如果说记住单词是学英语的前提,那么学好英汉互译则是学好英语的关键,或者说是瓶颈,因为你只有汉语是母语,而你现在学一门新的语言,所以你必须把他和母语结合起来,去感受英语的特点和精髓.所以学好翻译你才能学好英语,过了翻译关你一定会对英语感兴趣的.）（可以看一些翻译教学视频）
第三招：过句段篇的关.（学了内功和基本功之后就可以学招式了.但是招式纷繁复杂,那就需要积累.）（那就背和记吧!）（背美文写作文）（普特听力网挺不错的,它上面的素材足够你用的了.）

packed
chose
grew
guessed
remembered
learnt
tried
turned
followed
knocked

楼主,这句话我可以帮你解释,你写的语法顺序不对,按闽南的习惯,正确的写法是：“汝是想欲按怎?” 此句是一个疑问句,读音为：“立洗朽妹安 zua?”(按照我所注字的声调读,就对了,最后一字zua发4声).此句话的意思是“你（到底）是想要怎样（做）呢?” 我解答完了,

细胞质基质,线粒体基质,线粒体内膜对应有氧呼吸三个阶段的反应场所

playing to play be eat playing teaches.are having.dont look .listen visited

在纸上乱写 doodle on a piece of paper
doodle:
n. v.乱写,乱画

凸出.凸起.凸透镜.凸凹不平

0.4米=4分米
30米=300分米
62.5厘米=6.25分米
注水体积=4×300×6.25=7500立方分米=7500升

I care about your feelings no more.

我什么都喜欢,爱打篮球,爱唱歌,爱看电视,爱······我最喜欢读书啦!读书使我增长知识.正因为有了书,我才知道有神机妙算的诸葛亮,豪放勇敢的武松,正因为有了书,我才发现世界有这么多的故事,有这么多的人.读书使我...

氧化亚铁为：FeO
碳为：C
一氧化碳为：CO
碳还原氧化亚铁方程式为：2FeO+C=高温=2Fe+CO2↑
一氧化碳还原氧化亚铁方程式为：FeO+CO=高温=Fe+CO2↑

礼物的珍贵与否,并不在于它昂贵的价格,也不在于它庞大的数量,往往在于它所体现的意义……
小洁是我在小学的同学,也是我最好的玩伴,更巧的是,她的生日和我在同一天.因此,每当深秋将近,我们都会十分用心地为对方准备一份精美的礼物.
这一年的深秋又要来了,与她不见已有半月之久,我与她相约来到一家商店,明则为了过把购物瘾,暗的里则是要探听出她喜欢的礼物.
来到服饰柜台,小洁的一双眼睛顿时亮了.我四处环视着,发现了一顶精致的毛绒小帽,这不是她和我一样最爱的红色吗?我忽然想起来半个月之前她曾经在这里买过一条红色条纹的围巾,如果送她一顶与围巾搭配的帽子,不是再合适不过了吗?我当机立断买下了那顶帽子.付钱的时候,我看见迎面而来的小洁异样的目光,她是不是已经猜到这会是我送她的礼物了呢?
又是一周过后,在萧瑟的秋风和飞舞的落叶中,我们都迎来了各自的十四岁.我和小洁在饭店中为彼此庆祝生日.在吹完蜡烛,分完蛋糕之后,便进入了交换礼物的环节.
我接过小洁递过来的礼盒,无意间注意到她那灿若春花的笑脸,心中便猜到了这礼物一定也非同一般.我同样抱着灿烂的笑容将礼盒摆到她面前.于是,我们十分期待地拆开礼物……
打开礼盒,眼前的一切令我既惊讶又感动.安详地摆在盒子里的,宛然便是那条似曾相识的红条纹围巾.小洁还没拆开礼物,但她注意到我惊喜交加的表情,便笑着解释说：“我半个月前在商店里见到这最后一条红围巾,想到你最喜欢红色,就买下来了.怎么样?好看吗?和你上星期买的那顶红色小帽很搭配吧!”说完慢慢打开她的礼盒……
“这是……”她抬起头,疑惑地看着我.等我们弄清楚事情的原委后,都不由得会心地笑了,既为这个美丽的巧合,又为那些美丽的误会……
虽然那围巾和帽子确实是天衣无缝的搭配,但是我还是收下了那份礼物.而且我不得不说：那是我一生中最珍贵的礼物.不仅仅因为它是我和小洁之间纯洁友谊的最好见证,更是因为,收藏着那份特殊的礼物,就等于收藏着朋友之间互相关怀的心.

省略号所表达的意思：鼓励儿子要坚强地面对生活,同时母亲暗示了自己,鼓励自己也要努力地活下去.

f(x)=3x^2+4x.这是最基本的求导啊!看看一般求导公式就可以了.注意复合函数的求导.

T T T F F
绝对正确

英语不是像楼下说先提速再保障准确率,就好比走都没有学会怎么可能会跑呢?
英语这科日常训练保持题感非常重要,慢慢的在做题中积累词句用法和语感最后速度自然就上来了.而且你才学考离高考还有一年左右,足够改变了,加油吧!

TFTTF

DCBD

This is our school library . You can surf the inter net to get information, do your homework and read books. But you can't speak loud or draw on the books neither can you take the books home.

最小的奇数是1 ,最大的一位数是 9,所以 最小的奇数与最大的一位数的倒数和是 10/9 差是 8/9

是简单的生命进化的!

128×88
=(125+3)x88
=125x88+3x88
=（125x8）x11+264
=11000+264
=11264

你吐的烟圈、是你离开时带不走的浮云!
不要画乱我的脸蛋,
你传了街道,车传了你

43、What‘s like
44、twelve-year-old
45、rides to
46、time fo

32.Are there any
33.Does ...have
34.Make ...on
35.What's the nationality of your mother?这题的提示没看到···

（1）100!/98!=100×99×98!/98!=100×99=9900
（2）依题意得,a-2000>0,所以a>2000,/1999-a/=a-1999,所以原式可化为
根号下a-2000=a-/1999-a/,两边平方得,a-2000=a方+/1999-a/的平方-2a(a-1999)=a方+/1999-a/的平方-2a方+3998a,（a-1999)的平方=a方-3997a-2000
(3)假如A或B在整点上,则为2010+1=2011个；假如A和B不在整点上,则为2010个
（4）y可以表示为数轴上的点(x,0)到点(1,0)和(-1,0)的距离之和,当x2;当x在-1和1之间时,y=2;x>1时,y>2,所以y有最小值2,A不对.x在-1和1之间时y都可取2,B不对.CD假如意思不同的话,应该选C,但我觉得好像差不多,挑一个字数多的保险

1，为了您和他人的健康请不要在场内吸烟。2，方便大家再次阅读，请保持书面整洁。3，为了你我他，安全靠大家。

F
F
T
F
F
T
T
F

一、作文要学会积累
“读书破万卷,下笔如有神”,“巧妇难为无米之炊”古人这些总结,从正反两方面说明了“积累”在写作中的重要性.“平时靠积累,考场凭发挥”,这是考场学子的共同体会.平时要广泛阅读书籍、报刊,并做好读书笔记,把一些优美的词语、句子、语段摘录在特定的本子上,也可以制作读书卡片上
同时要加强材料方面的积累.许多学生由于平时不注意积累素材,每到作文时就去搜肠挂肚,或者胡编或者抄袭.解决这一问题的方法是积累素材.要深入观察生活、积极参与生活,并与写生、、写日记、写观察笔记等形式,及时记录家庭生活、校园生活、社会生活中的见闻.记录时要抓住细节,把握人、事、物、景的特征.这 样,写出的文章就有血有肉.
要摘录名人名言,格言警句等.
二、写好作文先学会观察
一是多看,二是多练.这里的“多看”即指多观察.这就说明：要写好文章,要掌握娴熟的文章写作手法,就要多观察,学会观察,观察是写作的必要前提和基础.
其实,作文水平不是一朝一夕就能提高的,你要有点耐心,给多点时间练练它
长篇大论也不说了、多读书读好书、也不求什么古典名著了、什么都可以、只要你能从中学会学习别人的写法、也不要永远的用别人的写的、因为有的并不是真的合适、经不起推敲、随着年龄的增加呢、水平会越来越高的、相信我哦

No graffiti,please!

这是一篇略读课文.课文讲述了圣诞节前夜,保罗偶然结识了一个生活贫困的小男孩,在短暂的相处中,小男孩的言行强烈地震撼了保罗的心灵,使他深深体会到“给予是快乐的”.

不会