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For example, in a study published last year in the Proceedings of the National Academy of Sciences a group of researchers looked at crustaceans (crabs, shrimps, woodlice and so on) over the past 550m years and found far more examples of groups of species evolving towards complexity than in the other direction.

举个例子，去年美国国家科学院公布的一项研究里，一群研究人员对生活在过去5.5亿年里的诸如螃蟹、虾、节肢动物有树虱之类的甲壳纲动物进行了研究。他们发现，更多的物种群体是朝着复杂而不是别的方向进化的。

Several high-temperature monascus strains screened from high-temperature Daqu (used for Maotai-flavor liquor production in Langjiu Group were used to study the esterification conditions of their raw zymin.

以从郎酒厂酱酒生产用高温大曲中分离筛选出几株产酯能力相对较强的高温型红曲霉为菌种，对其粗酶制剂酯化条件进行初步研究。

Endangered Abies yuanbaoshanensis will probably have been extinct,so it very necessary to studying its genetic diversity with a proper way in order to save this key group of biological diversity in China.In the present study,AFLP(amplified fragment length polymorphism) markers was used to examine population of Abies yuanbaoshanensis in order to understand the level of population genetic variation and genetic structure.

首先，物种的遗传多样性是长期进化的结果，是其生存和发展的前提，对遗传多样性进行研究可以为分析濒危物种或种群的进化潜力和未来命运提供重要资料；其次，遗传多样性是保护生物学研究的核心之一，不了解种内遗传变异大小、时空分布及其与环境条件的关系，就无法采用科学有效的措施来挽救濒于灭绝的物种、保护受到威胁的物种，对珍惜濒危物种制定合理的保护方针和策略，有赖于对物种遗传多样性的认识。

In this study, creative thinking processes of Achen and his small group were interpreted and the author's design was found to significantly improve students' creativity.

本文以阿正及个案小组为中心，分析诠释其创造性思考过程，发现著者之研究设计能增进学生的创造力。

Developmental screening at age 4 showed no significant differences between the two study groups and the control groups. In the mixed acidemia group there were slightly more infants had deficits in speech/language development.

儿童4岁时随诊其发育、运动和语言能力显示：代酸组及混酸组和对照组比较差异无显著性，只在混酸组语言表达迟钝的例数略多。

Methods:In this study, 100 cases of urethra condyloma acumination were recruited: 56 cases were treated with CO 2 laser (group CO 2 laser), while the other 44 cases with 20% peltatin.

10 0例尿道口尖锐湿疣患者，分为治疗组 5 6例，采用CO2 激光治疗；对照组 44例，采用 2 0 %足叶草酯治疗。

Methods: Between April and November, 2004, we carried out a cross-sectional study that administerd a self-assessed health questionnaire survey to the parents of 1,117 children from 14 elementary and junior high schools with high tension power lines hovering over the campuses. The control group was consisted of 2,204 children from 18 control schools. Multivariate multinominal logistic regression model was used to calculate the age and socioeconomic indicators adjusted odds ratios and the corresponding confidence intervals of clinical visits and health conditions within a one- month period prior to questionnaire survey in relation to the putatively hazardous exposure to magnetic fields.

本研究利用横断性研究设计，在2004年4月至11月期间，针对台北县市14所校园上空有高压输电线跨越之国民中小学学童1，117名以及18所校园上空无高压输电线跨越之国民中小学学童2，204名的家长进行过去一个月以来，对学童健康情形之自我评量问卷；并利用多变量多名义逻辑斯迥归模式调整年龄与社经指标后，计算胜算比及其相对应之信赖区间，用以估计暴露组学童过去一个月内生病与就医症状的相对危险性。

Social capital, therefore in the study, is regared as a aggregative resource which are able to prompt group members to take part in community work, and then to accumulate more resources through the whole process of public participation.

在本文中，将社会资本视为社区居民的集体资源，可促进民众持续性参与社区工作，并透过民众参与的过程，持续积累社会资本。

Objective:To study the influence of different amino group introductions on the antiplatelet aggregation activities of pyridazinone derivatives.

目的：研究不同取代氨基侧链的引入对哒嗪酮类化合物抗血小板聚集活性的影响。

Observe by animal experiment and clinic study,this method apply to diagnose middle, serious arteriostenosis especially; But, thenumerical value of gains parameter AUC, DPI, TTP there are no obvious differencein light arteriostenosis and regular group, bring certain difficulty to diagnose.

经动物实验及临床研究观察，此方法尤其适用于诊断中、重度动脉狭窄；然而移植肾动脉轻度狭窄时所得参数AUC、DPI、TTP与正常组数值无明显差异，为诊断带来一定困难。

The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了，排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意，我建议我们在价格上大家各让一半。