斧正是什么意思谢谢

昨天一道题我自己又做了一边,不知道是否正确.请斧正.
lim(x->∞)[x(a^(1/x)-1)]
=lim(x->∞)[x (a^(1/x)-1)((a^(1/x)+1) / (a^(1/x)+1))]
=lim(x->∞)[x (a^(2/x)-1)/(a^(1/x)+1))]
=lim(x->∞)[xa^(2/x)-x)/(a^(1/x)+1))]
分子分母求导数
=lim(x->∞)[a^(2/x) + 2a^((2-x)/x) - 1)/( (1/x)a^(1-x/x)) )]
=lim(x->∞)[(1 + 2 - 1 )/ 1 )]
=2
http://zhidao.baidu.com/question/390302274.html?quesup2&oldq=1
昨天您给的答案。

请斧正 将一下几句话改成一首诗?要求更押韵,七言绝句,意境更好
大江南北任尔游
四方物志乐共鉴
轻风酥雪飘落尽
又是一年春来时

下列句子中用语得体的一项是（）
a奉上拙著一本，鄙人才疏学浅，书中谬误甚多，特此敬请斧正
b学生会经过调查研究，写出了一份调查报告，提出了不少改进食堂服务质量的意见，并责成学校***研究落实
c听说贵公司在经营方面存在困难，你们如需指点的话，我们将不吝赐教

敬辞谦辞填写
例如：求人看稿时说（斧正）
1、请人批评时说（）
2、好久不见时说（）
3、求给方便时说（）
4、向人祝贺时说（）
5、求人指点时说（）
6、初次见面时说（）
7、求人帮忙时说（）
8、麻烦别人时说（）
9、求人解答时说（）
10、求人办事时说（）
11、求人原谅时说（）

把敬辞与谦词填到下列句子中!
赐教 指教 抱歉 劳驾 打扰 斧正 别来无恙 劳烦
请人批评说（）
求人原谅说（）
好久不见说（）
求人帮忙说（）
求给方便说（）
麻烦别人说（）
求人看稿时说（）
求人解答时说（）
求人指点时说（）

麻烦英语高手帮我斧正一下这篇六级作文!
For the past few years there have been more and more students ignored the study of Chinese.Now let us discuss why they became like this.First of all we can watch more and more English movies and listen to more and more English song though Internet now.These recreations make English become popular.Secondly,our country’s education have made English become very important to the students.If you are not good at English you can’t go to a good college.The last but not the least,there are a lot of companies in our country doing business with foreigners ,they need many people who know English well to help them.
In my opinion,though English is very useful today,we should not ignore Chinese study because it is our mother tongue.It keep us remembering who I am.There will be one day that Chinese become more useful than English and the foreigners have to learn Chinese well to do business with us.

请高手看看我的英语信件中可有错误,望斧正.
Dear Lecturer Liu
My name's xxx.I do not know if you are familiar with this name,but I am sure you are if you called the roll before classes.I have been absent from your classes three times with no reasons provided.And I felt obliged to write to explain my uncountable absences.
Fist of all,I make my apologies.I know what I have done could be regarded as disrespect,but I want you to know I did not mean it.I admit I overslept the fist time,but I do have reasons for next ones.I was stuck in something which is,actually ,very inconvenient to talk about.Something very personal,as you might know.And because of this,I did not ask off.I hope you can understand.But now I am very happy to say it's done,which means I won't miss any classes of yours any more.I know whether I attend or not is not important to you but it is important to me.
When we had a chance to rechoose courses,I did not change my choice.I was so determined that I did not even know when the course rechoosing started and ended.I did not care.I know I like the way you speak English and things you talked about in the classes.I am sure I can learn something.All these words written are meant to show my passion in your course and I am wondering if there's something I can do to change the bad impression I might have given.
So,once again,I do my apologies

英语翻译
绝不要有语法错误,因为要在考试中写出来就是硬伤了.括号里边是我想出来的,请斧正并且再添加.
1城市的公共交通应该得到改善,因为很多人每天要在上班路上话费很多时间.
(The public transport system should be improve,as many commuters have to spend too much time on the road to their workplaces)
2.我的房子坐落在距飞机场走路20分钟的远的范围之内.
(My house is situated within 20 minutes of walk)

我自己翻译的英语段落,请各位斧正.其中的pieces为什么不能用parts?
We often think of agriculture as planting seeds and harversting crops.But many crops do not come from seedsMany kinds of trees and plants are grown from pieces（为什么不能用parts?） cut from existing trees and plants.This is called grafting.
我们常常想到的农业是播种收割,但是很多农作物不是由种子长成的.许多种类的树木和农作物是砍下已经存活的树木和农作物的一部分长成（这句话翻译起来有点吃力,现在读起来也不是很通顺,请帮忙改改）,这种种植方法叫做嫁接.

来位英语高手帮我斧正下篇刚写的六级作文吧!
Should Parents Send Their Kids to Art Classes?
Nowadays there are so many parents sending their kids to art classes.What’s more,a lot of attention is being drawn to it and people ‘s ideas are various.
On the one hand,some people hold the view that it should be done.First of all,since the parents have became no longer poor as in the old day,they have extra money to invest in the education of their children now.Letting their children take part in the art classes is a convenient way for that.Secondly,nowadays there are many kinds of art classes for parents to choose.A lot of advertises make parents itch to try.The last but not the least,the competitions between children have been keen.Taking part in the art classes can make the children become more competitive.
On the other hand,a great many people insist that parents should not send their kids to art classes.They mainly pointed out that art classes are killing the happy childhood of children,it is harmful to the health of kids.
In my opinion,as the old saying “every corn has two sides”.If things can be done properly,it should be OK.
我不是要翻译啊，这篇文章就是我写的我要翻译干嘛！我是要高手帮我看看哪里写错了或者哪里可以写得更好啊！

近世代数问题:我感觉"有限半群存在等幂元"不对,请斧正
我有{1,2}定义运算
1*1=2
1*2=2
2*1=2
2*2=1
岂不就是说明,不存在a*a=a的等幂元么?
还望高人指教.

谦辞敬语我知道。
久仰、指正、久违、海涵、劳驾、打扰、借光、高见、恭贺、斧正
①请人改文章说（斧正）
②初次见面时说（）
③好久不见时说（）
④麻烦别人时说（）
⑤请人批评时说（）
⑥求人帮忙时说（）
⑦向人祝贺时说（）
⑧求人原谅时说（）
⑨求给方便时说（）
⑩求人解答时说（）