This paper, through quantitative and qualitative analysis of the cost-benefit of decision, tries to find out social discount rate or inside investment yield and net amount of the current value, and then to assess the investment feasibility of the decision scheme.

In national economic evaluation, fixed exchange rate system cause government make shade price and social discount rate middle finger mark set time to be too long, reality, with stipulating the disconnection.

在国民经济评价中，固定汇率制度致使政府在制定影子价格和社会折现率中指标固定时间过长，现实与规定脱节。

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From the angle of national economy, the national economic internal rate of return of the proposed project is more than 8 percent the social discount rate. The construction project has high risk resistance capacity.

从国民经济评价角度论证，拟建项目国民经济内部收益率均大于社会折现率8%的要求，均具有较强的抗风险能力。

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The market rate of interest can not directly substitute the social discount rate for its defect on preference revealing, interest forming, the reward of risk, etc.

而市场利率由于在偏好揭示、利率形成、风险报酬等方面的缺陷，又不能直接替代社会贴现率。

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I also provide a comment on the deficiency of low social discount rate and a comparison of TCA and Cost-Benefit analysis as in environmental economics.

同时，针对人们认识上的一些误区，笔者对贴现率的选择做了评述，指出采用较低的社会贴现率在理论上和实践上的不足。

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When the economic internal rate of return is greater than or equal to social discount rate, the project is feasible.

当经济内部收益率大于或等于社会折现率时，项目是可行的。

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For the social discount rate, the use of the idea of systems analysis, integrated approach to solving the discount rate.

对于社会折现率问题，本文运用系统分析的思想，提出求解折现率的综合方法。

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The Influencing Factors of Social Discount Rate in BRICs

金砖四国社会折现率的影响因素分析

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Its economic internal rate of return is 13.41%, larger than its social discount rate 12%, therefore, the project is economically rational.

该工程的经济内部收益率为13.41%，大于社会贴现率12%，所以该工程在经济上是合理的。

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The Determination of Social Discount Rate in the Process of Public Investment Decision-making

公共投资决策过程中社会贴现率的确定

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On the other hand, the Chapter describes the geographical and social differences within Nanjiang dialect.

此外，对南江方言语音的地域差异和社会差异作了一定的描述和说明。

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Geographical and Social Distribution of Wuhan Dialect

武汉方言的地理及社会分布

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Apart from that, social distribution of dialect can be studied in its change condition from the pronunciations of some words and way of expressions, all of which reflect how Mandarin Chinese is spread and how language is standardized in this city.

此外，方言的社会方言可以从某些词的发音、词汇等分布中，看出该方言的变化情况，以此折射出官话普及在武汉地区执行情况及语言规范化情况。

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Oral competence is one of the fundamental competences for preschool teachers, and social dialect has always been regarded as one of the chief factors that influences the teacher's linguistic standardization in the recent years.

教师口语是幼儿教师的基本教学技能之一，社会方言是近年来影响幼儿教师语言规范、并且容易被忽视的主要因素之一。

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In the past decades, African-American Vernacular English has been a significant social dialect gradually. The main reason is that African-Americans are a noticeable social-class in their daily life.

美国的黑人英语（即AAVE&African American Vernacular English）在以往几十年中逐步成为一种重要的社会方言，这主要是因为黑人在美国社会生活中是一个令人注目的社会阶层。

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As a special social dialect, the language of Tea-Leaf Picking Opera in Fuzhou is based on Fuzhou dialect as "in writing" and "Mandarin" formed.

抚州采茶戏语言作为一种特殊的社会方言，是在抚州方言的基础上，依书面化和官话化而形成的。

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The basic dialect of the common language is the authoritative dialect which should have double-authority: the authoritative geographical dialect and the authoritative social dialect.

共同语的基础方言是权威方言，应当具有双重权威性，即既是权威的地域方言，同时又是权威的社会方言。

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Network language, a kind of social dialect in rapid progress due to the great development of the Internet, relies on specific context and is playing an increasingly important role in language communication.

网络语言是随着互联网的迅猛发展而兴起并蓬勃发展的一种新的社会方言，它依赖于网络的特定语境，在语言交流中发挥着越来越重要的作用。

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The network language is a burgeoning social dialect in nature, a variety of language in network, and the invented rhyming words are common phenomena in network language.

网络语言的实质是一种新兴的社会方言，是语言在网络中的语言变体，而谐音生造词是网络语言中常见的现象。

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Starting with general and special concept of dialect, the dissertation introduces the concept of social dialect which is discussed in both sociolinguistics and urban dialectology.

本文从方言的广义及狭义概念入手，引入了社会方言这一社会语言学及都市方言学都会涉及到的概念。

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Slang, as a social dialect, is a component of the language of anation.

俚语作为社会方言是全民语言的一个组成部分。

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