性选择的

Since there are special courses devoted to commutative algebra and algebraic geometry, these parts are not included in the present course.

因此选择的内容应有普适性、示范性、基础性、重要性和可教性。过于专门化的理论或细节不是这门课的任务。

Ceng Po of personage of interior of the software in A says for philosophical sex ground: Do not have a person to be able to create the history, we are the bulrush in historical onrush, choose different way to produce different final result, can say the result that is effort, also can say the result that is a choice.

阿里软件内部人士曾颇为哲学性地说：没有人可以创造历史，我们都是历史洪流中的芦苇，选择不同的方向产生不同的结局，可以说是努力的结果，也可以说是选择的结果。

In order to ensure there are enough small thickness, you should choose good homogeneity and diffusibility envirogluvtm, and note that the business card printing and membership card making ink and business card printing and membership card making substrate of the match performance.

为保证有足够小的厚度，应选择均匀性和扩散性好的油墨，并注意制卡和会员卡制作油墨与制卡和会员卡制作承印物的匹配性能。

Darwin saw that he could never account for the beauties of plant and animal life by natural selection, and he had to introduce the great secondary principle of sexual selection .

达尔文觉得他不能够以自然的选择的原理去解释动植物的美，所以他只好提出性的选择这个第二大原理。

OBJECTIVE: The aim of this study was to examine the diagnostic properties of airway responsiveness to inhaled mannitol in the assessment of asthma in an unselected sample of young adults.

目的：本研究的目的是在未经选择的年轻受试者当中探讨吸入性甘露醇对气道反应性的诊断特征。

Bull; The choice of a proper module structure is the key to achieving the aims of reusability and extendibility.

一个适当的模块结构的选择是达成复用性和扩充性目标的关键。

The aromatic position isomers, such as xylene and nitrotoluene, were separated well. Moreover, some chiral compounds including alcohol, amine, ester etc., were also resolved.

不但对二甲笨、硝甲苯等难分离的芳香族位置异构体，而且对醇、胺、酯等多种类型的手性异构体均有很好的分离能力和手性选择能力。

This review focuses on the current research progress of the liver cell differentiation source, and it also discusses the advantages and disadvantages of various hepatic stem cells and nonhepatic stem cells, expecting to provide a reference for liver cell source selection during tissue engineering, an adequate and suitable source for bioartificial liver and hepatocyte transplantation and to help to treat liver diseases.

本文着重论述了目前肝脏细胞的分化来源研究进展情况，并对各种肝源性和非肝源性干细胞的优缺点进行了讨论，以期为肝组织工程选择细胞来源提供参考，为生物人工肝、肝细胞移植提供充足、合适的细胞来源，协助治疗肝脏疾病。

The cross-current flow extraction of substituted anilines from aqueous solution was conducted with extractant which has high extraction efficency and is easy to be biodegraded.

选择萃取效率高、生物降解性好的溶剂对取代苯胺进行了错流萃取的研究，并对萃取后水相的生物降解性进行了研究。

People who feel they have unlimited moral choices in their lives when it comes to matters of sex or drugs, for example, tend to be unhappier than those who do not feel they have so many choices in life.

例如，一些人觉得在他们的生活中充斥着无限的道德选择，比如在性或毒品的问题上，而这些人往往比那些不觉得自己有这么多的选择的人要忧心忡忡，不那么快乐。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。