If there are no truly non-venomous snakes, were the so-called non-venomous snakes, like constrictors and pythons, were they venomous at some point in their evolution?
如果没有真正的无毒蛇，那些所谓的无毒蛇，比如蟒蛇和巨蟒，在它们进化过程中的某个阶段是有毒的吗？
But ambitious private companies are acquiring foreign brands in hopes of speeding up their evolution into international competitors.
但雄心勃勃的私营公司并购海外品牌则是希望早日加入国际竞争者行列。
The workings of these institutions are important to comprehend if we are to predict their actions today and their evolution in the coming information age.
如果今天我们要预测他们的行为，以及他们在即将到来的信息时代的进化，这些组织机构的运行对于我们的理解是十分重要的。
Often, organizations that successfully and consistently use solution lifecycle methodologies like RUP look at implementing EA as the next milestone in their evolution.
通常，成功且一贯使用解决方案生命周期方法，如RUP的组织将EA的实现视为演进的下一个里程碑。
This program, along with other analysis techniques could allow paleontologists to learn more about how these species lived and how their environments influenced their evolution.
这个程序和其他的分析技术可以使古生物学家了解更多关于这些物种如何生活、它们赖以生存的环境如何影响它们的进化之类的问题。
The pharma and biotech sectors are at a pivotal point in their evolution.
制药和生物技术行业目前在行业整体转型过程中处于关键阶段。
The paper suggests clustering the return series of industrial indexes stage by stage to explore the relations among industries and their evolution course.
文章提出对行业指数收益率序列分阶段进行聚类分析的动态分析方法，以考察行业间的相互关系及其演化过程。
The barrier function of human beings and mammals, formed during their evolution and in the process of adaptation to the environment, is regulated by nervous system.
人和哺乳类动物在进化和适应外界环境条件过程中所形成的屏障机能是由神经系统来调节的。
This article has briefly discussed the three types of enterprise system form and their respective structures, environmental relations and the basic direction of their evolution.
简述了企业系统形态的三大基本类型，并宏观地分析了各类形态的结构、环境关系和形态演化的基本方向。
Gillman says that if plants in warmer climates evolve more quickly, mammals living there will also have to speed up their evolution to keep pace with their food's rapidly adapting defenses.
吉尔曼称，如果生长在比较温暖气候中的植物进化得较快，生活在那里的动物也将不得不加快进化速度，以便跟其食物的快速适应性防御保持同步。
With features that can vary somewhat in form without greatly affecting function, such as the shape of the skull, chance might play a bigger role in their evolution than natural selection.
一些具有差异化的表现形式但对功能影响不大的特征- - -比如头盖骨的形状，在进化过程中可能起着比自然选择更重要的作用。
Its proximity to us makes it an exceptional laboratory to perform in-depth studies of star formation processes and their evolution in an environment slightly different from our own Milky Way.
它如此接近我们，环境又与我们的银河系稍有不同，这使它成为一个特别的实验室，使我们能更加深入的了解恒星的形成过程和演化。
According to the viewpoint of system theory, the difference between platform facies and trough facies, and the influnece among them are summarized, and their evolution model is found in this paper.
文中以系统论的观点总结了台地相与槽盆相的差别及各相之间的关系，建立了二叠纪至早三叠世平果台地沉积体系之演化模式。
Their evolution has been alternatively controlled by two kinds of stress field-left lateral compression, right lateral tension.
它们的演化受左旋挤压、右旋拉张两种应力场的转换控制。
Their evolution of the concept of marriage and family could be traced to the profound social causes and meanwhile reflected the progress as well as limitation of the time.
她们婚姻家庭观念的变化有着深刻的社会原因，反映了时代的进步和局限。
Their evolution of the concept of marriage and family could be traced to the profound social causes and meanwhile reflected the progress as well as limitation of the time.
她们婚姻家庭观念的变化有着深刻的社会原因，反映了时代的进步和局限。
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