In this paper,the author obtains some features of Bertrand curves such as that necessary and sufficient conditions for a Bertrand curve is curve,discusses the distance from a point of a Bertrand curve to the corresponding point of the mate of Γ,the angle of the two tangent lines and so on.

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The scholars started from a point of view that theyself were the male and realizeded that the female's beauty is a latent harm to the society of males.Because of it,the scholars gave the female some effective criterion of ethics and behavior. So the female could walk on this road voluntarily and became a controlled and enslaved role.Besides it, the scholars bounded and fixed the female's station in accordance with the given distinction of production, labor, politics and education between the male and felmale.It became a theory starting point of ethics that males and husbands the honour, females and wives the humble in the aftertime of bimillennium.

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This paper carries out study on corporate governance based on system theory, advances concept of corporate governance, analyzes and abstracts system core of corporate governance from the point of mechanism by means of study on environment energy-rank principle, running mechanism and model of corporate governance. This paper analyzes mechanism of stimulation and restraint by using game theory, verifies effect of stock right structure on efficiency of corporate governance in view of connection between capital and corporate governance, gives method of resolving optimum stock right limit of collection and deconcentration and adventure share model of blending capital, and discusses problem of entrance of stakeholders to corporate governance etc.

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Based on this discussion, the dissertation attempts to establish a framework for translation from a sociosemiotic perspective, emphasizing that Peirce's triadic division of a sign can be used to explicate translation in a macro point of view and that Morris's famous three types of meaning can be applied to the actual translation practice. From this, it can be clearly shown that a sociosemiotic theory is a sound one in its application to translation.

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Going through my past, I could see my perseverance was not inherited from my parents whom obviously different from me on this point, and I remember when I was young I never put my heart into one thing for a long time, today did this, tomorrow that, can't have got one thing satisfied, so I was the useless one in the other's eyes.

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Depending on personal experience, personaltiy type and emotional concern, we find that some people hold the idea of A meanwhile other prefer to B, from my point of view, it is more advisable to chose A rather than B. My arguments for this point are listed as follows.

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This is different from a mouse because each point on the tablet represents a point on the screen.

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Kaplan, MD, from the Woodruff Health Sciences Center at Emory University, and Rafael Harpaz, MD, from the National Center for Immunization and Respiratory Diseases at the Centers for Disease Control and Prevention, both in Atlanta, Georgia, commend the authors on outlining the factors that introduce uncertainty into any assessment of the cost-effectiveness of this vaccine at this point.

Kaplan醫(yī)師和疾管局國家免疫和呼吸道疾病中心的Rafael Harpaz醫(yī)師怡红院视，建議作者描述目前任何對此疫苗成本效益的不確定性因素。

The SEEA released by the United Nations on behalf of the highest level of the Environmental and economic accounting. This paper describes the content of the . SEEA from a new point of view in the process of studying the SEEA versions. Full text is divided into four chapters: Chapter I first introduces the background and theoretical significance of studying The System of Integrated Environmental and Economic accounting,and then, this paper introduces the status quo of the SEEA at home and abroad. Finally, this note on the whole of ideas, give readers a general impression.

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Based on the study of scholars at home and abroad and from the point of theoretical and empirical study, this paper analyses the impact of foreign trade and FDI over China's business cycle using many econometric methods such as Unit Root Test, Co-integration Tests, Granger Test, Pulse-response Function and variance decomposition based on VAR model and draws the conclusion as follows:Firstly,there is a close relationship among foreign trade, FDI and business cycle. Foreign trade and FDI are the important transmission channel of the economic cycle. Secondly, the impact to economic fluctuation from foreign trade is greater than that of FDI. Thirdly, In the long time, there is fine interactive circulation among foreign trade, FDI and economic growth. When the short-term deviation from equilibrium happens, there is a self-balanced mechanism in the system.Fourthly,the active effect outweighs the negative effect which the foreign trade and FDI brings.

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