The introduction part explains the causes of the selection of the subject, describes the present academic research on price discrimination and presents the research methods of this thesis.
引言部分主要介绍本文的选题缘由、学术界对价格歧视研究的现状，以及本文研究所遵循的思路。
The adverse selection of population quality of China is not only the research object of many subject, but also is arguing focus of academe.
中国的人口素质逆淘汰问题不仅是多学科的研究对象，而且是学术界争论的焦点。
The selection of large primes is the key to construct RSA secret key. The production and test of large prime is an important research subject in RSA public key system.
大素数的选取是构造RSA密钥的关键，在素数的产生及测试是RSA公钥系统中的一个重要研究课题。
The subject selection, scheme preparation, theoretical analysis, experiment and development, appraisal of achievements in scientific research, are all based on scientific and technical literature.
从科学研究的选题、制定方案、理论分析、实验研制到成果鉴定等各个阶段，无不以科技文献为依据。
In foreword part, it introduces the present research condition of MEEHD in our academic circle, elaborates reasons and value of the selection of this subject.
引言部分主要介绍目前学术界对东汉庄园经济的研究状况，阐述选题的原因、意义。
Problem is the start point of scientific research work, and subject selection is the first step of the whole scientific research procedures.
问题是科学研究的起点，选题是科学研究全过程的第一步。
Connecting with working practice, this paper introduces the classification, subject selection and application process of medical scientific research projects.
针对近几年科研课题申请中出现的问题，结合工作实际，提出提高科研课题申请质量的若干建议。
The paper firstly introduces the subject selection and the present situation of this research. The definition of entrepreneurial environment is introduced.
本文首先介绍了选题来源、国内外研究现状，界定了创业、创业环境的概念。
The paper firstly introduces the subject selection and the present situation of this research. The definition of entrepreneurial environment is introduced.
本文首先介绍了选题来源、国内外研究现状，界定了创业、创业环境的概念。
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