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In general, this paper includes several parts, shown as the following: The first part summarizes the background and outline of stock index future and introduce briefly its local status and CSI 300 stock index future contract. The second part has a retrospect of the main academic papers of both local or overseas, and also a discussion of relevant hedge strategies and models, to lay a solid theoretical foundation for the empirical analysis and test for the operation process of hedge in latter parts. The third part outlines the principle, key factors and real operation process of hedge. Moreover, it makes a empirical analysis on popular hedge models with HK Hang Seng index. In the end, it test the hedge effect of trading on IF0706, CSI 300 stock index future contract, with CCB select-growth securities fund as present underlying. The fourth and also the last part, explores how to define hedge ratio in china mainland market. It includes the stability test ofβfor local securities portfolio, adjustment of historicalβand best data length for estimation of historicalβ, etc. Also, the thesis makes some beneficial experiments on the definition of best data length for estimation of historicalβ, survey of fashion forβand variation for industryβs. Fortunately, it's got some meaningful results.

按照以上研究思路，本论文论述由以下几个部分构成：第一部分，简要概述股指期货产生的背景和基本情况，对国内股指期货进程和沪深300股指期货合约进行简单介绍；第二部分，回顾海内外股指期货避险研究的主要文献，讨论相关避险策略及避险模型，为后面套期保值策略如何有效运用的实证分析和检验提供理论基础和依据；第三部分，对套期保值的原理、关键因素及实际流程进行概述，并采用香港恒生指数对常用的几种避险模型进行实证分析，最后一揽子以建信优选成长股票型基金为现货标的，实际检验以沪深300股指期货模拟交易IF0706产品进行对冲时的套期保值效果；第四部分，探讨国内确定避险比率的过程，包括国内股票组合β值的稳定性检验、历史β值的修正及估计历史β值的最佳数据长度等，通过数据分析，本文在寻找估计β值的最佳数据长度和考察风格、行业β值的差异上做了较为有益的尝试，并得到了有助于现实操作的结果。

I looked at my site to identify how this changes affects it but it looks like it's got the same inane content it always has.

我看了看我的网站以确定如何变化的影响，但看起来它得到了相同的空虚的内容一如既往。

I had ingrown toe nail for 2-3 days.....the very very minimum weak version of it.....got rid of it as soon as possible as i went to the doctor to find out what it was....i can tell you those 2-3 days it was really no fun walking at all, i didn't even want to walk.

我曾经有2－3天脚趾甲向内的经历……只要有一点点轻微的压力……就找医生想尽快把它拿掉，结果发现……告诉你吧哪2－3天我根本不应该走路，也根本走不了。

I can touch them with my finger A thousand nights later I only got me No problem, no complaints; It's the way it should be Life was fast, It was free Guess I've been lucky Cause I'm still here... But some friends are gone Has it really been that long?

我能用手指触摸一千个夜晚后我只有我自己没关系，没有抱怨；事情就应该是这个样子生命匆匆，来去自由可能我一直都是幸运的因为我仍然在这里但是有些朋友已经不在真的已经过了那么久吗？

It is no longer the place where Billy the white horse stood his ground, and where Stanley Matthews forced others to yield theirs; it's not the place where Jim Montgomery made his save, or where Ricky Villa made his mazy dribble, or where Elton John's uncle got crocked, or where Smith must score, or where some people were on the pitch: they thought it was all over, it was then.

这已不再是当年比利和白马所站之处，不再是斯坦利*马休斯让对手屈服的地方，不再是吉姆*蒙哥马利做出扑救，里奇*维拉进行眼花缭乱运球，不再是让埃尔顿*约翰的叔叔喝的酩酊大醉，促使史密斯必须进球的地方了：当年的人和事已无法重现，他们认为这里的过去都已结束，已成往事了。

Definitely, we're just ready to move on, you know, I've asured them that it wouldn't happen again, and I hold myself accountable for my actions, and you know, just a misstep, I want to put it behind me, I wish it would never happen like that, but you know, I got to move on, my teammates help me get through it.

肯定的，我们只是想往前看，你知道，我向他们保证这种事情不会再发生，我对我的行为负全责，你知道，只是一个失足，我不想再去提这事了，我但愿它没有发生，但是你知道，我必须往前看，我的队友帮助我让这事过去。

So before you say the Grizzlies got fleeced, let's give this trade some more time to play out. As it stands now, it already looks monumentally better than it did for the Grizzlies just nine months ago. Two years from now, it might look even better.

所以先不要说灰熊做这交易就是被打劫了，让我们再给一些时间去验证吧，目前看来，这交易就比9个月前看起来对灰熊有利好多了，再过两年吧，甚至还会变得更好。

Jill House, an analyst at International Data Corp., lists three of WAP's strong points:"It's got industry wide support, it's nonproprietary and it's well suited to the devices it's being ported to."

国际数据公司的分析师jillhouse列出了wap的三个强项：它得到了整个业界的支持、它不是专有的以及它很适合要移植到的设备。

And the three men, forcing their way through the Philistine army, got water from the water-hole of Beth-lehem, by the doorway into the town, and took it back to David: but he would not take it, but, draining it out, made an offering of it to the Lord.

23：16 这三个勇士就闯过非利士人的营盘、从伯利恒城门旁的井里打水、拿来奉给大卫，他却不肯喝、将水奠在耶和华面前

"So the three, forcing a way through the Philistine army, got water from the water-hole of Beth-lehem, by the door way into the town, and took it back to David; but David would not take it, but made an offering of it, draining it out to the Lord,"

这三个勇士就闯过非利士人的营盘，从伯利恒城门旁的井里打水，拿来奉给大卫。他却不肯喝，将水奠在耶和华面前

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。