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But his first commenter points out that many people from poor backgrounds are academic achievers.

但是他最初却指出，在学术上有作为的人很多都来自贫困家庭。。

If they no longer have a prejudice against people who don't sound the same as they, they may be more accepting of people from different backgrounds who don't sound the same, Professor Crain said.

如果他们不再对有与他们口音不同的人们有偏见，他们也许会变得对不同口音来自不同文化背景的人更善意，C教授说道。

If they no longer have a prejudice against people who don't sound the same as they, they may be more accepting of people from different backgrounds who don't sound the same, Professor Crain said.

Crain教授说&如果他们对和他们口音不同的人不再存在偏见，他们就更加能接受来自不同背景的那些口音不同的人。&

So, the radiation backgrounds of DAMA set-up have been studied in the thesis, and the simulated values are in coincidence with the ones of DAMA experiments.

为此，我对DAMA实验的本底问题进行了模拟研究，在低能区获得了同DAMA实验本底计数相符的结果。

The oft-cited goal of a public university is to be a microcosm — in this case, of the nation's most populous, most demographically dynamic state — and to enrich the educational experience with a variety of cultures, economic backgrounds and viewpoints.

公立大学经常为人传颂的目标是要成为一个小宇宙，以此为例，是美国人口最多、人口结构最充满动能的州的缩影，并以不同的文化、经济背景和观点丰富教学经验。

You can create colorful backgrounds out of ordinary dull pictures, you can apply AKVIS Coloriage to get rid of the red eye effect, to make selective color correction, selective desaturation and colorizing, etc.

你可以在平庸的图片中创造出丰富多彩的背景色彩，你可以用AKVIS Coloriage除去红眼，选择性地校正颜色，减低饱和度和添加色彩等等。

This work, concentrated on the asymmetric allylation of aldehydes controlled by different chiral auxiliaries prepared from rotational pure tartaric acid, can be divided into three parts.The first part aims to review the developments of chiral drugs and asymmetric synthesis, from which derived the present research topic backgrounds and works.Synthesis and applications of allylation from aldehydes are the second part of the thesis. By optimizing the reaction conditions, such as solvents, temperature, time and chiral auxiliaries like N,N\'-dibenzyl tartamide, N,N\'-p-dimethylphenyl tartamide, N,N\'-o-dimethylphenyl tartamide, N,N\'-o-dichlorophenyl tartamide, N,N\'-a-dinaphyl tartamide, N,N\'-dicyclohexyl tartamide and N,N\'-diphenyl tartamide, ideal experimenttal conditions are obtained according to HPLC monitoring, as well as the auxiliaries\' recoveries experiments. Starting from benzaldehyde and 3-bromopropaldehyde, N,N\'-dibenzyl tartamide is considered the best auxiliary in this reaction.

本文介绍了醛的不对称烯丙基化反应，以光学纯酒石酸为原料，研究了不同构型手性配体在醛的烯丙基化反应中的立体选择性，全文共分三部分十个章节：第一部分对当前手性药物和手性技术进行了概述，并由此展开了本文的研究背景和任务；第二部分为有机合成部分，对醛的不对称烯丙基化反应进行了深入探讨，以苯甲醛为原料对反应条件进行优化，在优化的反应条件下对制备的七种可回收手性酰胺配体(N-苄基酒石酸二酰胺、N-对甲苯基酒石酸二酰胺、N-邻甲苯基酒石酸二酰胺、N-邻氯苯基酒石酸二酰胺、N-a-萘基酒石酸二酰胺、N-环己基酒石酸二酰胺和N-苯基酒石酸二酰胺)进行筛选，优化配体回收实验条件，最终确定出N-苄基酒石酸二酰胺在苯甲醛的不对称烯丙基化反应中具有较大优越性，结晶回收的手性配体光学纯度保持不变。

In this article, the study of Electroacoustic music was mainly done by the method of classification. The first part of the article described the historical and technological backgrounds under which the Electroacoustic music was formed.

本文对电子音乐的研究主要采取了分类的方法，文中的第一部分分别阐述了电子音乐形成的历史条件和技术条件。

Based on the advantages of complete parallax and great depth of field of demonstrated by holography, an empaistic hologram is designed by fitting the object with each of the multiple backgrounds respectively.

摘 要：本文利用全息摄影具有真正视差和大景深良好效果的优势，设计了一个主体物分别与多重背景独立组合的浮雕型全息图片。

This article is divided into four parts: The first part is introduction, summarizing the avant-gardeliterature's ideological trend,context backgrounds and the emphatical andenergetic atmosphere. From this we grasp his creations, the specialcharacteristics, combing around his two times in the theme and the stylestyle.This period is "the false form", entering the later period of "thereality ".

本文共分四部分：第一部分引言，着重简述先锋文学思潮的时代背景和精神氛围，由此把握余华小说创作的精神特质，并梳理出他前后两个时期在创作主题和风格上的风貌及其变化，即告别前期&虚伪的形式&，进入后期&现实的生活&。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。