性选择的

Is total colectomy the right choice in intractable slow-transit constipation?

全结肠切除术是治疗顽固性慢传输性便秘的正确选择吗？

Distribution behavior of terbutaline enantiomorph was investigated in a aqueous/organic two-phase system containing a chiral selector (L-dihexyltartrate).

研究了特布他林对映体在含手性选择剂水－有机溶剂两相体系中的萃取分配行为。

There are eight main hypotheses about the selective factors on evolution of endothermy in animals, including Thermal Niche Expansion Model, Homeothermy and Metabolic Efficiency Model, Decreasing Body Size Model, Postural Change Model, Increasing Brain Size Model, Aerobic Capacity Model, Parental Care Model and Assimilation Capacity Model.

内温性起源的选择因子包括8个模型：热生态位扩展模型、恒温与代谢效率模型、降低个体大小模型、姿势改变模型、增加脑大小模型、有氧呼吸能力模型、双亲行为模型和同化能力模型。

It revealed that both the parental mating distances and the sexual selection played an indispensable role in male reproductive success of Liriodendron.

交配距离、性选择倾向在鹅掌楸个体的雄性繁殖适合度中扮演重要角色。

Objective To investigate the choice of palliative operation for the carcinoma of head of pancreas.

摘 要：目的探讨胰头癌姑息性手术的术式选择。

A non-binary social choice is actually a group decision-making problemwith the preference relation need not satisfying the connectivity axiom.

非二元性选择问题实际上就是偏好关系不一定满足连通性公理的群决策问题。

A revealed preference binary relation is defined based on the path independence choice function, and the revealed preference relation happens to be a partial order, some further conclusions are driven based on this property, and the relative proof is given.

其次，通过路径无关性选择函数定义了一个展示偏好二元关系，证明了此展示偏好正好具有偏序特征，并得到了一些进一步的性质。

ABSTRACT］ Objective To investigate the relationship between Pselectin and HenochSchonlein purpura and purpuric nephritis in children.

目的 探讨血清P选择素与儿童过敏性紫癜及紫癜性肾炎的相关性。

This suggests that the ability to make others laugh has evolved at least in part through sexual selection.

这表明 逗笑他人的能力至少部分地通过性选择演化了。

In mating behavior, sexual selection take important effect in deciding whether it success or not.

性选择鸣声在交配行为中起着重要作用：决定了交配的成功与失败。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。