四对的

This paper is composed of four parts: the first part is the exordium and explain the developing trend of researches of exchange rate volatility, the second part introduce the data that used in this article and describe the character of the object, the third part simulate the daily exchange rate of the ShangHai Stock Composite Price Index with ARCH models, the fourth part forecast the volatility of the daily exchange rate.

全文共分为四个部分：第一部分阐述了关于收益率波动研究的发展趋势，并总结了国内外基于ARCH 模型的一些实证研究成果；第二部分介绍了本文研究所使用的数据及处理方法，并对该数据的统计特征进行描述；第三部分引入ARCH 族模型对上证指数的日收益率序列进行拟合研究，通过拟合不同的模型揭示了日收益率波动过程中条件异方差的波动特征，定量的刻画了收益率波动的不确定性；第四部分将拟合的模型应用于对收益率波动的预测，分别从定性预测和定量预测两个角度介绍ARCH 族模型的应用实例。

This text is divided into four parts altogether: first part,mainly analyze to the crisis of Chiles old system, announce the reason of the reform; Second part Including:principle, goal of the reform, the content of the new system, the action of transition period and operation result of the new system; The third part,appraisal and summary of experience of the reform; The fourth part, the ones that reformed to China in Chile basic old-age pension system benefited enlightenment.

本文共分为四个部分：第一部分，对智利旧的养老保险制度的危机进行分析，揭示进行改革的原因；第二部分包括：智利养老保险制度改革的原则、目标，新的养老保险制度的内容，过渡时期的举措及新制度的运行效果分析；第三部分是对改革的评价及经验总结；第四部分，指出智利养老保险制度改革对中国养老保险制度改革所具有的现实意义。

Paper deals with the contrast from four aspects: 1、 polarity ; 2、 transitivity; 3、 voice; 4、 ergative.

本文应用系统功能语法中三大纯理功能之一的概念功能理论，对英汉广播新闻从四个层面进行对比分析：一、归一度；二、及物性；三、语态；四、作格。

In the fourth part, based on Grices Co-operative Principle and its four maxims, the present thesis analyzes and categorizes examples of realizing hedging strategy through breaking the four maxims.

第四部分中文章在Grice的合作原则以及四项准则的基础上，对政治外交语言中违反四项准则的模糊策略的语用实现形式及相关例子进行分析归纳。

The sequence analysis results of CO I and 16S rRNA gene showed that the much lower divergent level found among the ingroup samples in this study is more typical of what is seen among populations within species.

为了得到四种分析方法一致的沼虾属系统发育关系，我们构建了这四棵树的50%合一树，结果发现沼虾属可分为第二对步足左右不对称的类群和第二对步足左右对称的类群。

Objective: To observe the effects of Xiaokeping Jiaonang in treating the hyperglycaemia Jimpy mice which was caused by adrenaline and the rabbit of diabetes mellitus which was caused by alloxan; to explore the mechanism in blood rheology and Ang of biochemistry etc.

目的：观察消渴平胶囊对肾上腺素性高血糖小鼠以及四氧嘧啶性糖尿病家兔的治疗作用，探讨消渴平胶囊对肾上腺素引起的高血糖小鼠和四氧嘧啶性糖尿病家兔的治疗作用机制。

I told him that I was an actor, that my name was Fabantou, that I had played comedy with Mamselle Mars, with Mamselle Muche, that my landlord insisted on being paid tomorrow, the 4th of February, and he didn't even notice that the 8th of January, and not the 4th of February is the time when the quarter runs out!

我对他说，我当过戏剧演员，我叫法邦杜，我和马尔斯小姐、缪什小姐演过喜剧，明天，二月四号，我的房东要收房租，可他一点也没看出来，限期是二月八号，并不是二月四号！

It didn't finish there, in fact the two of us had sex four times that night pretty good for a girl who'd had six white wines and four double vodkas.

而且不是一次就完事了，那一夜整整四次！对一个喝了六瓶白酒和四个双份伏特加的女孩来说，很牛逼吧？！

To increase the security of the watermark, a new binary image encryption algorithm based on TD-ERCS map is presented. The watermark is encrypted by a chaos sequence generated by TD-ERCS map; A novel color image watermarking algorithm is proposed based on discrete chaotic map and 2-dimensions discrete wavelet transform. The watermark is encrypted by the new binary image encryption algorithm, and the encrypted watermark is embed into four sub-bands of the most deep level of blue branch of host image by three-level wavelet transform, and the embedded positions are determined by general cat cha otic map; A novel color-image blind detection watermarking algorithm is proposed based on integer wavelet transform and subsampling. The scrambled watermark is encrypted and embed into the low sub-bands after four sub-images of the Y branch of host image is transformed by two-level wavelet transform, and the embedded positions are determined by Logistic chaotic map, this watermarking scheme can realize blind extraction.

为了提高水印图像的安全性，提出了一种基于TD-ERCS混沌映射的二值水印图像的加密算法，该算法利用TD-ERCS映射产生的混沌序列加密水印图像；将离散混沌映射和二维离散小波变换相结合，研究了彩色图像水印新算法，该算法先对混沌序列加密后的水印图像进行小波变换，再嵌入到宿主图像的蓝色分量的最深层的四个子带中，嵌入位置则由广义猫映射确定；将整数小波变换和图像子采样技术应用于数字水印，提出了一种彩色图像盲提取水印算法，水印嵌入时，先对宿主图像在YIQ色彩空间中的Y分量进行子采样，并对得到的四个子图像分别进行二级离散小波变换，然后将置乱并加密后的水印图像嵌入到小波变换后的低频子带中，其嵌入位置由Logistic混沌映射产生的混沌序列确定，实现了水印的盲提取。

The experiment used Four kinds of farmland common herbicides (Fenoxaprop、Clethodim、Glyphosate、Fenoxaprop-p-ethl),MDA content、Leaf cell menbrane permeability、Chlorophyll content were tested under three treaments of different medicaments and combined with the growth index.The results showed:(1) When they were used in normal concentration,growth and the others physiological indexes had obviously different under four kinds of herbicides treatments.According to effects of four herbicides on Zanthoxylum bungeanum Maxim ,the effect of Glyphosate randed first,the rest ones were Clethodim、Fenoxaprop-p-ethl and Fenoxaprop.

以农田中常用的6.9%骠马水乳剂、24%收乐通乳油、88.8%飞达红水溶性粒剂、6.9%威霸水乳剂等四种除草剂为供试对象，通过对各药剂的三种浓度处理下花椒叶片中丙二醛含量、叶片中叶绿素含量、叶片中细胞膜通透性的测定，再结合生长量指标进行分析研究，结果表明：(1)在常用浓度下，四种除草剂对花椒生长量及各生理指标的影响有很大差异，飞达红影响最大，依次为收乐通、威霸、骠马。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。