以上问答省略RULER.Thanks().That's all right

my desk is full of books
the bag is full of sweets
i saw lily playing on the ground when i called lucy
i saw wang copying ing while i was writing

achelor degree or above

关爱,就是关心爱护,它在我们身边无处不在.我们每个人都需要关爱,生活上也少不了关爱,别人给予我们关爱,那我们更应该去关心爱护他人,这样世界上才会充满——爱!关爱他人可以从小事做起,譬如你帮助一个同学辅导功课,一...

1.我家有只小白狗,它浑身长着雪白的毛,摸上去软绵绵的,像穿着一件干净的白毛衣；一对大眼睛咕碌碌直转,仿佛两颗黑宝石；头顶上长着对小耳朵,鼻子扁扁的,上面常常很湿润,奶奶说那是小狗健康的表现；尖尖的尾巴十分灵活,常常不停地左右摇晃,但是如果你弄痛了小白狗,它就会“汪汪汪”地叫,尾巴也夹在两腿间,真有点像书上说的“夹着尾巴逃跑”.我最喜欢看小白狗吃食了.一天,我拿了一块肉.小白狗看见了,围着我直转.我把肉向上一抛,小白狗纵身一跃,张开嘴巴一咬就准,然后它用前脚把肉按住,用牙一点一点地撕,吃得真是津津有味,一会儿就下了肚.吃完后,它还用舌头舔舔嘴巴,仿佛在回味刚才的美餐 .
小白狗睡觉也很有意思.天气暖和时,小白狗很爱趴在地上睡,前脚向前伸着,后腿向后伸,或是四脚朝着同一方向舒服地躺着.冬天来了,小白狗怕冷了,它把头紧紧地埋在腿间,蜷着身子呼呼大睡,.小白狗如果开心的话,还会四脚朝天睡,肚子随着呼吸一鼓一鼓的.小白狗觉睡醒了,还会伸懒腰.它把前脚伸得长长的,再吸上一口气,把身子一拱,可爱极了.
妈妈有时坐在客厅织毛衣,一不小心,毛线团滚到了地上,小白狗耳朵一动,就闪电般地冲过去,灵活的大眼睛不停地寻找.然后,身子一跃就把毛线团紧紧地按住,快活地玩了起来,它一会儿跳过来,一会儿蹦过去,一会儿把线团滚到左边,一会儿把线团滚到右边,还用前爪拍拍线团,像小孩子玩皮球一样,真有意思!
2.我一向喜欢狗.先说外形吧,眼睛像两颗黑葡萄,亮起来非常可怕.鼻子圆得像一个绒球.嘴巴大大的,里面有着两排洁白的牙齿,非常锐利.身子不怎么大,但是非常强壮.它的臭脚丫非常小,看上去像是会站不稳的.
它非常调皮.以此,全家都在吃中饭,它肚子饿了,却把前脚抬起,放在长凳上.爸爸坐在它脚上,它马上旺旺地大叫起来,似乎在责备我们.好多次,我都用脚踹它,它却总是会叫起来.
别说什么了,最有趣的是,那天我给它吃了了两块蛋糕,它马上把蛋糕吃完了.可是他还想吃,就把嘴巴咧开,非常有趣.
它又那么尽责,晚上一点钟,它守在门口,蹲在那里耀武扬威、生气勃勃,像是一位将军一样.一连几个钟头,它也不累,还是呆着,做自己的事,我不敢再打它了.

第一个：
One day,a little monkey is playing by the well.
一天,有只小猴子在井边玩儿.
He looks in the well and shouts :
它往井里一瞧,高喊道：
“Oh!My god!The moon has fallen into the well!”
“噢!我的天!月亮掉到井里头啦!”
An older monkeys runs over,takes a look,and says,
一只大猴子跑来一看,说,
“Goodness me!The moon is really in the water!”
“糟啦!月亮掉在井里头啦!”
And olderly monkey comes over.
老猴子也跑过来.
He is very surprised as well and cries out:
他也非常惊奇,喊道：
“The moon is in the well.”
“糟了,月亮掉在井里头了!”
A group of monkeys run over to the well .
一群猴子跑到井边来,
They look at the moon in the well and shout:
他们看到井里的月亮,喊道：
“The moon did fall into the well!Come on!Let’get it out!”
“月亮掉在井里头啦!快来!让我们把它捞起来!”
Then,the oldest monkey hangs on the tree up side down ,with his feet on the branch .
然后,老猴子倒挂在大树上,
And he pulls the next monkey’s feet with his hands.
拉住大猴子的脚,
All the other monkeys follow his suit,
其他的猴子一个个跟着,
And they join each other one by one down to the moon in the well.
它们一只连着一只直到井里.
Just before they reach the moon,the oldest monkey raises his head and happens to see the moon in the sky,
正好他们摸到月亮的时候,老猴子抬头发现月亮挂在天上呢
He yells excitedly “Don’t be so foolish!The moon is still in the sky!”
它兴奋地大叫：“别蠢了!月亮还好好地挂在天上呢!”
第二个：
An Equally Important Son
When president Trueman got elected,all media came to his home to interview his mother.One newspaper reporter said to his mom " congratulations,madam,you must be very proud of your son!" " Thank you,I am surely proud of him.But I am equally proud of another son of mine," answered his mother." Where is he and what is he doing," the reporter asked impatiently hoping to find some incredible stories about the president's young brother." He is in the field digging potatoes,said the mom plainly and confidently.

Forest prevent the dirt from sweeping by the flood.

QBC quality buffy coat 优质血沉棕黄层
cell-dyn dynamics力学; 动力学
haematocrit血球容积计 haemo血的
spectrophometer光谱测声器
incubator保温箱 autoclave高压灭菌器 hot air oven干热灭菌器
petri-dishes 培养皿
waterbath水浴(锅),恒温槽
只知道这些了 剩下的哪位高手做一下补充吧

Vb=4Va
m1V0=m1Va+m2Vb=m1Va+m2×4Va=m1Va+4m2Va,﹙m1/m2﹚V0=﹙m1/m2﹚Va+4Va=﹙m1/m2+4)Va,﹙m1/m2﹚²V0²=﹙m1/m2+4)²Va² ①,
1/2 m1V0^2=1/2 m1Va^2+1/2m2Vb^2,﹙m1/m2﹚V0²＝﹙m1/m2﹚Va²+16Va² ,
﹙m1/m2﹚V0²＝﹙m1/m2+16）Va² ②,
①÷②得：m1/m2=﹙m1/m2+4)²／﹙m1/m2+16）,设m1/m2＝x,得：x＝﹙x＋4﹚²／﹙x＋16﹚
x﹙x＋16﹚＝﹙x＋4﹚²
8x＝16
x=2,即m1/m2=2,m1 ：m2=2 ：1

1.S V （主＋谓）
2.S V O C （主＋谓＋宾＋宾补）

south africa

1*2+2*3+3*4+.+n(n+1)=1/3*n(n+1)(n+2)

Automatic valve
自动阀
sight glass
视镜
Flat gasket
平垫圈
tee
开球
measuring point
测量点
tee reduced
开球减少
pipe
管道
welding neck flange
焊颈法兰
pipe elbow
管弯头
hex screw
六角改锥

in the past's 60 age middle of the month,China one was rising step by step,this was the China children expected,was also worth dancing with joy.From the founding of the nation the first day,the many unfriendly countries internationally is being hostile toward China,does everything possible to hinder China to progress.the US was the biggest threat which China developed,the Korean War which,the Vietnam War the US started causes our country has suffered the heavy loss in the manpower and the financial resource aspect; The US supports Chiang Kai-Shek counter-attacks the mainland motion to cause our country coast not to be peaceful for a long time; Present's US still in did everything possible to suppress China,like did not acknowledge that China market economy status,gesticulates,force Renminbi revaluation in the Taiwan problem and so on,zai weilai di regan nian zhong,the US will still be China's enemies,is the forever trouble maker
We believed that in the Chinese nation great rejuvenation's journey,will certainly to appear for one another magnificent 30 years!Chinese nation's rising,will certainly to let the world be proud for us!

别人给了你帮助
你就可以答thank you
别人给你提建议
就可以用that's ok
表示你对别人的赞同
就可以用all right
别人对你道歉
你就可以说it doesn't matter

希望我的回答能够帮到你!
请及时采纳为满意答案,谢谢!

1/1*2=1/1-1/2;
1/2*3=1/2-1/3
1/3*4=1/3-1/4
...
1/n(n+1)=1/n -1/(n+1)
1/1*2+1/2*3+1/3*4+...+1/n(n+1)
=(1/1-1/2)+(1/2-1/3)+(1/3-1/4)+...+(1/(n-1)-1/n)+(1/n -1/(n+1))
=1-1/(n+1)

解1：
1-3+5-7+9-11……+2013-2015
=1+5+9+……+2013-(3+7+……+2015)
=(1+2013)×504/2-(3+2015)×504/2
=(1+2012-3-2015)×504/2
=(-4)×252
=-1008
解2：
1-3+5-7+9-11……+2013-2015
=(1-3)+(5-7)+(9-11)……+(2013-2015)
=-2-2-2……-2
=(-2)×504
=-1008
解3：
1-3+5-7+9-11……+2013-2015
=1+(-3+5)+(-7+9)+(-11+13)……+(-2011+2013)-2015
=1+2+2+2……+2-2015
=1-2015+2×503
=-1008

钢板密度都是7.85

Supermarket is in front of the bank.

原式=1/2-1/3+1/3-1/4+……+1/7-1/8=3/8.这个是列项.

No.7-2-46,7th Floor,General Office Building,Chongqing Bonded Port Area,No.318,Haier Road,Jiangbei District,Chongqing

已发邮箱.望采纳,谢谢!

at the community center
在社区中心
示例用法:
Her son was at the community center last night.
昨晚她儿子在社区活动中心.

2/1+6/1+12/1+20/1+30/1
=1-1/2 +1/2-1/3 +1/3-1/4 + 1/4-1/5 +1/5-1/6
=1-1/6
=5/6

1.黄昏,夕阳如血,我站在海边,惊涛骇浪拍击着脚底的岩石,像孩子的呜咽,像夜里的狼嚎,像台风夜里的风啸,可是,这些声音都不能掩盖我心底如海浪般的悲伤；（运用了比喻及排比）2.戴望舒,穿着一袭深色长袍,如一颗挺拔的树...

(1)-a^2+81
=81-a²
=（9+a）（9-a）
(2)9y^3-4y
=y（9y²-4）
=y(3y+2)(3y-2)
(3)4a^2+4ab+b^2
=(2a+b)²
(4)x^4-1
=（x²+1）（x²-1）
=(x²+1)(x+1)(x-1)

∵a/b+b/a+2=ab
且a>0,b>0
∴等式两边同时乘以ab
即a×a+b×b+2ab=a×a×b×b
∵a×a+b×b+2ab=［a+b］的平方
即［a+b］的平方等于［ab］的平方
∴a+b= ab 或者a+b=- ab
∵a>0,b>0
∴a+b= a

How to save food
As students,there are many things we can do to stopwasting.
Firstly,we’d better go to school on foot or ride abike instead of taking a car or a
bus.Secondly,try our best to save any naturalresources,for example,order food just as much as we need when we go out formeals,turn off the lights as soon as we leave the room,make sure to turn offthe taps after using them
What’s more,always remember topractice 3Rs-reuse,recycle and reduce.Furthermore,we’d better encourage ourfriends and family members to join us!
Only in this way can we live happily.
In a word,I think ,no matter what a small effort wemake,it can make a big
difference.

e applied to various industries within the limits permitted.

楼主写倒了
1/6+1/12+1/20+1/30+1/42+1/56+1/72
=1/2-1/3+1/3-1/4+1/4-1/5+1/5-1/6+1/6-1/7+1/7-1/8+1/8-1/9
=1/2-1/9
=7/18

1.poster 3 He can watch Spiderman.
2.poster 1, He can watch Harry Potter.
3.70+35=105 They should pay 105 yuan.

Though my daily life is extremely monotonous, I try hard to adapt myself to it. Why? Because I intend to be a good student. I wish to render service to my country.
I get up at six o’clock every day. After I wash my face and brush my teeth, I begin to review my lessons. I go to school at seven o’clock.
After school is over, I return home. We usually have supper at seven o’clock.Then I begin to do my homework. I want to finish it before I go to bed.