求大大们帮编写通达信教程。很简单

一个高中数学关于解三角形的题 求大大们解答
在三角形ABC中 角A.B.C所对的边为a.b.c acosA=bsinB.则 sinAcosA+cos 平方B 求结果

英语博士大大们,进来看看吧.
Miss Smith is pretty and ______,and many girls envy her.
a.slender
b.light
c.faint
d.minor
If you continue to drive like this,you will ______ in hospital sooner or later.
a.end up
b.put up
c.come up
d.make up
Several problems have ______ recently over questions of pay.
a.raised
b.arisen
c.risen
d.arrived
It’s high time that he settled down in the country and _________ a new life.
a.to start
b.start
c.starting
d.started
______his sister,Jack is quiet and does not easily make friends with others.
a.Dislike
b.Alike
c.Likely
d.Unlike
Most of the viewers vote for the movie for its attractive ______.
a.plot
b.platform
c.fame
d.Channel
Everyone was shocked to learn that Jack was ______ in the terrorist attack.
a.lost
b.involved
c.confused
d.concerned
- Hi,Jane.Would you like to go to the ball this evening?- Sorry,Frank.____ tomorrow's lessons,I have no time to go out with you.
a.Not to prepare
b.Being not prepared
c.Not preparing
d.Not having prepared
I wish everybody ______the meeting tomorrow.
a.had attended
b.is going to attend
c.will attend
d.would attend
题目10All attendants are ______ to come to the meeting on time.
a.acquired
b.required
c.inquired
d.proposed

急求一篇全英文的论文
本人是某中外联合办学学校的学生 现急求一篇英语论文 两天之内必须交上 希望各位大大们帮一下忙 帮忙写一篇 要求如下：
1。 字数约1500字
2。 要求语法比较通顺 尽量无错 因为我实在看不懂 也无法改错
3。 题目四选一 为：
1. Why do not people listen? What are the bariers o effective cmmunication and what does this mean for getting people to understand what you are saying?
2. Technology has improved our speed of communication and our ability to be reached anywhere, anytime on the planet. Do you think this has significantly improved cmmunication between people in China or is this not really communication at all?
3. Cross-cultural communication is always difficult. What are the experiences you have had in class, and what strategies did you adopt to overcome the barriers. What are the implications for study in Australia?
4. How much weight do we give non-verbal communication in our society and is it too much, about right, or not enough. How much about a person can you tell by not even speaking to them, but just watching and listening?
以上为论文题目与要求 事关小弟期末成绩 如有大大能帮忙 能加多少分双手奉上
冰天雪地 五花大绑 双手合十 跪求各位给小弟点HELP。
表BS我 我也是无奈啊 英文水平差 对了 请不要随便复制个网址给我让我去找 去了我也看不懂 愿意帮我写最好啦 不愿意写帮我找一下也可以 字数不要超过太多 我同学刚才在网上找了一篇题目差不多的 居然有15W字。。。

概率与数理统计题,求大大们解答.
1.10个零件中有3个次品和7个合格品.每次从其中任取一个零件,共取3次,取出后不放回,求：
（1）这3次斗不抽到合格品的概率.
（2）这3次中至少有一次抽到合格品的概率.
2.某厂车间生产铜丝的折断力已知服从正态分布,生产一直比较稳定.今从产品中随机抽取9根检查折断力,测的数据如下（单位kg）：
289,268,285,284,286,285,286,298,292
问在显著水平 阿尔法=0.05下是否可以认为该车间的铜丝折断力的方差仍为20?

考研作文,知道自己写的很烂,大大们就不要评论了.
帮忙看下有什么能改的地方,
像同义词替换,什么的就不用说了,慢慢积累.

大大们,一小段英文的意思,帮帮忙……
No matter the ending is perfect or not, you cannot disappear from my world.

悬赏100分请教学过量子力学的大大们几道判断题

错误的地方请说明理由或举出反例谢谢

各位大大们,急需一篇关于《是否应该文理分科》的英语作文.
100字左右的,唔,明天就要用的噻,额.可以给个框架么?

3道简单的高中数学题,大大们帮忙啊,急~~
1、若f(x)=(m-1)x^2+6mx+2是偶函数,则f(0),f(1),f(-2)从小到大的顺序是____________
2、已知函数f(x)=x^2+2ax+2,x属于[-5,5]
(1)当a=-1时,求函数f(x)的最大值和最小值
(2)求实数a的取值范围,使y=f(x)在区间[-5,5]上是单调函数
3、已知函数f(x)=ax^3+cx+5满足f(-3),求f(3)的值
最好能带上解析啊~~

请大大们帮忙解下这道线性代数题
设线性方程组
（2-λ）X1+2 X2-2 X3=1
2 X1+(5-λ) X2-4 X3=2
2 X1-4 X2+(5-λ) X3=-λ-1
问λ取何值时,方程组的解不唯一
请大大们教教我这道题目,麻烦大大们了.

活性炭包净水问题.第一次使用活性炭净水,望懂得或有经验的大大们解答~
想用活性炭净化洗脸用的水（北方的自来水）.用的时候,提前一段时间把活性炭包放入水盆里,用完之后捞出炭包晾干,下次使用时再放入水中.经常这样干湿交替的活性炭,它的净化和吸附特性会受到影响或改变吗?另外家里的自来水铁锈含量稍高（喝水的马克杯用10天左右,杯壁上有淡黄色铁锈）,这种程度的水,1包50g的活性炭需要多久更换一次好呢?

各位学霸大大们，求回答，有悬赏哦，虽然也不太多，可也是人家的一点点心意，喔，貌似跑题了，咳咳，那么，言归正传，求这篇作文，原创的最好，谢谢！

一道找规律的题···大家帮忙看看···希望给出详细答案··说明原因··谢谢大大们···望大家踊跃讨
如图····要找出规律选择正确的答案···谢谢··

正确答案出来了··是D···这位大大jiangfan1223对了··不过我还是很不明白··求解释··谢谢大大们的帮忙··

请英语大大们帮忙下
1._ the wolf comes in at the door,love creeps out of the window.
2.Two dogs fight for a bone,_ a third runs away with it.
3.Take care of the pennies _ the dollars will take care of themselves.
4.The pitcher goes so often tothe well _ it is broken at last.
5.Never ask pardon _ you are accused.
6.The tongue is not steel,_ it cuts.
7.Love lives in cottage _ in courts.
8.It never rains _ it pours.
9.Better be an old man's darling _ a young man's slave.
10.Laugh,_ the world laughs with you.Cry,_ youcry alone
11.Don't pour out the dirty water _ you have clean.
12.Call no man happy _ he is dead.
填空加翻译······拜托大家帮帮忙了

关于一个英语句子,请大大们帮我分析下,
The mouse,like the keyboard,is a control device_____to a computer.
1.填connected的话,是非谓语
2.填that it connected的话,是同位语
3.填that connected的话,是定语从句
我这几个的分析对吗?这个句子是单选题,答案是第一个,为什么第三个不行?
p.s：定语从句和同位语要怎么区分?除了关系词是否在从句中充当成分来判断,还有什么依据吗?这个句子是单选题,答案是第一个,为什么第三个不行?

大大们求翻译英语阅读!Mutton is one of the must popular dishes in Inner Mongolia.On special occasions,or when wealthy tourist come for a visit,whole lambs are roasted over an open fire.They cannot afford to eat Kaoquanyang every day.Mutton is mostly served as Shoubarou---people eat by hand.Meat from the leg of the lamb is placed in an iron pot with water and boild until tender.When it is cooked,they cut it into pieces with a knife and dip into spices before eating by hand.It tastes really delicious,and you will never forget the smell and the liveliness.People can also make Shaomai with mutton and some onions and carrots.Such food is high in fat and overall calories,bue physical activities always make all of them healthy enough

请懂得盲文的大大们告诉下,汉语的写的盲文,碰到一字多音或者一音多字的情况是怎么处理的?
比如“是”这个字有很多同音的,书写汉语盲文怎么操作的?然后shi这个音我要表达成“事”是怎么操作的?

大大们求教一下《一架飞机在高空中由西向东沿水平方向作匀加速直线飞行,飞机每隔相同时间投一个物体,投了6个物体（不计空气阻力）,从地面看到的图像》为什么是是一条直线?老师说以飞机为参照物物体相当于沿着呢条直线匀加速是什么意思?

求名著阅读直通车 ；大大们请不要答非所问,
第一段（“汤姆现在横下了一条心.他又忧郁又绝望……于是欣然同意去当海盗”）：
1.联系小说内容,说说文中的汤姆为什么要离家出走去冒险?这反映了他怎样的性格特点?
2.对于汤姆离家出走,冒险闯荡的做法,说说你的理由.
第二段（“最后,蓓姬虚弱的手脚再也无力……他们站起身,手拉着手向前走去,可心里无数”）：
1.这个文段写了什么内容?表现了汤姆什么可贵品质?
2.结合此文段和全书的内容,请你谈谈你对汤姆的行为有怎么样的看法?
第三段（“汤姆东躲西闪的穿过几条巷子,离开了同学们返校的路……这就是海盗汤姆·索亚——西班牙海面上的黑衣侠盗!汤姆心里一阵又一阵地狂喜.”）
1.汤姆在确定当海盗之前还曾计划做什么?为什么他最后选定当海盗?
2.这一章描写人物时主要运用了哪些描写方法?有什么作用?
P.S.请尽快发答案给我（最好在今天之内）
我会另付20财富!

一个高中数学关于解三角形的题 求大大们解答
三角形ABC中 ,A.B.C 成等差数列 且2b的平方=3ac 求A 大大们

跪求几道高中物理题,请各位大大们解答!
1.如图所示,判断下列各电路是吸收功率还是发出功率.
图（a）是 ；图（b）是 ；
图（c）是 .
2.求下列电路的等效电阻：(a)Rab= 欧姆；(b)Rab= 欧姆.

3.如图所示,电压表的读数分别是：V1为40V,V2为60V,V3为30V.则Us为多少?
4. 如图是逻辑电路图,试写出逻辑关系式.

Y=
5. 计算以下二极管电路的电流I.E=3.5V,R=1.5KΩ（ 二极管导通时的电压降Uvd是0.5V）

图片已发出,跪求各位啊!要详细的过程哦!

请用不超过x=v0t+1/2at² v=vo+at范围的公式 大大们要是用超纲了我看不懂【揉脸】..
一物体从A点开始做匀加速直线运动加速度为a1 到达B点后开始做匀减速直线运动加速度为a2 当其到达c点速度正好为0 总共行驶路程为s 球物体所运动的时间t
【球今天6点之前得到答案哦亲...】

高一英语必修一人教版p55听力答案1,2,3,4都要~~大大们,帮帮忙~~~
30分钟内追加10分！~1,2,3题就行了

第二个跪求英语对话,请英语大大们帮忙
跪求英语对话,两人对话,一共八句左右,内容:怎样克服困难?

请问大大们光合作用产生的葡萄糖是什么状态额,还有澄清石灰水中的氢氧化钙是什么状态
注意，我问的状态是固体，液体，还是气体

各位大大们,正常情况下酵母菌的生长周期是多少 我着急用啊.
我想问的问题是酵母菌繁殖一代的时间是多少?

各位大大们我想请一女孩吃饭请问用文言文怎么写好呢?
我想写在送花的卡片上

麻烦大家帮我做个英语对话
麻烦各位大大们帮我做个关于（seaing the doctor）这个题目的两人对话,三分钟左右就行,要简单点的,好背的,呵呵.（大专水品）

德语发音疑问
各位德语大大们~
pseudo这个词中s发什么音啊,规则中s在元音前不是发z吗,但是我查杜登德英词典时标注/pscydo/ 这是怎么回事啊~
像这样s在不在句首的,比如globalisierung中s发s音还是z音呢~

跪求英语对话,上次表达错误,请英语大大们帮忙
跪求英语对话,两人对话,一共八句左右,内容:为什么?

210KG40%的氢氧化钠和100KG36-38%的盐酸中和后还需要多软水（PH值是6左右）才能冲到接近中性;希望大大们能
希望大大们能把计算过程列出来，谢谢！！

会计量经济学的来江湖救急啊
会计量经济学的大大们帮个忙啊~~这次我再不过就要重修了 对你们来说这4个题目不过是举手之劳吧?恳求达人回答~
1 为什么会存在随机误差?
2 古典线性回归模型的假定?
3 t检验的原假设是什么?解释R平方的含义?F统计量的原假设是什么?
4 怀特检验的原假设是什么?统计量是什么?服从什么分布?

关于一些英语选择题,希望有英语高手帮下,望大大们认真看下.
题号:1
He often spends more than what he earns, so he lives ____ his income.
a、in
b、by
c、beyond
d、with
题号:2
When first ______ to the market, these products enjoyed great success.
a、introducing
b、 introduced
c、 introduce
d、 being introduced
题号:3
The advertisement said that an expanding company wished to ____ a secretary at their head office.
a、explore
b、exploit
c、employ
d、accept
题号:4
When ____ the education systems of China and Britain, the professor gave a detailed comparison between the two.
a、being asked to compare
b、asked him to compare
c、asking him to compare
d、asked to compare
题号:5
The gold medal was ______ to Mr. Brown for his fine show of vegetables.
a、rewarded
b、 awarded
c、 rewarding
d、 awarding
题号:6
18. It is rather cold here. They ____ have turned off the heater several hours ago.
a、might
b、must
c、ought to
d、should
题号:7
I didn’t forget the book because my wife ____ me to bring it.
a、recalled
b、mentioned
c、reminded
d、remembered
题号:8
Tom preferred to play tennis ____ skating.
a、to
b、than going
c、to going
d、rather than go
题号:9
Last year John earned ____ his brother, who has a better position in a bigger company.
a、twice as many as
b、twice as much as
c、twice as more as
d、twice much as
题号:10
Do you feel like ____ out or would you rather ____ at home?
a、going …staying
b、going …stay
c、to go …stay
d、to go …staying
题号:11
Believe it or not, the old couple has _______ all their children.
a、survived
b、 conflicted
c、 exhausted
d、 outgrown
题号:12
The students expected there ____ more reviewing classes before the final exams.
a、is
b、being
c、have been
d、to be
题号:13
As _____ my request, my father sent me a check of $500, only half the money I badly neede；
a、a response for
b、 a response to
c、 respond to
d、 respond for
题号:14
______ the programme, they have to stay there for another two weeks.
a、Not completing
b、 Not completed
c、 Not having completed
d、 Having not completed
题号:15
The old man, ______ abroad for twenty years, is on the way back to his motherlan；
a、to work
b、 working
c、 to have worked
d、 having worked
题号:16
The news reporters hurried to the airport, only ______ the film stars had left.
a、to tell
b、 to be told
c、 telling
d、 told
题号:17
Correct grammar and sentence structure do not in themselves ____ good writing.
a、consist
b、consult
c、constitute
d、contribute
题号:18
Don’t leave the water ______ while you brush your teeth.
a、run
b、 running
c、 being run
d、 to run
题号:19
I often go to the English corner to have a free talk with my classmates ____ I am busy.
a、except that
b、 except for
c、 except when
d、 except

麻烦大大们帮解一下
1.{x+y+z=100
10x+3y+0.5z=100
2.{3x⒉-xy-4y⒉-3x+4y=0
x⒉+y⒉=25
第一题给个答案就成
第二题的平方符号有点奇怪,请见谅,

一道简单的模电题,请路过的大大们指教一二~


该题是判断下D1、D2是否导通,然后算出AO两点间的电压.为何D2导通后D1的阳极电位就变成-6了呢?是不是因为D2导通后利用同一导线是统一点,所以节点处是-6因此D1阳极电位就是-6了呢?那12V的电压呢?为什么没作用了呢?还有就是如果正如我所说利用同一道线是同一点,为何不把下边的节点当成6V使D1的阴极电位变成6V呢?拜托了大大们为我指点下迷津可好?

中译英两句.谢谢大大们
1.了解SAM迟到的原因,劝告他不要再犯,及後应向其他主管(in-charge)滙报有关情况.
2.与各同事多沟通