虽然这些分子允许可见波长的辐射阳光的绝大部分能量就汇集于此不受阻挡地穿透,但它们却会吸收某些较长波长,亦即从地球表面辐射出的红外发射,这种辐射若不是二氧化碳的缘故就会被重新输送回太空。
27. The role those anthropologists ascribe to evolution is not of dictating the details of human behavior but one of imposing constraintsways of feeling,thinking,and acting that come naturally in archetypal situations in any culture.
这些人类学家所归诸于生物进化的作用,不是规定人类行为的种种细节,而是将各种限制强加于人类即在任何文化的典型情景中都会自然表露的情感、思维、以及行动方式。
28. Which of the following most probably provides an appropriate analogy from human morphology for the details versus constraints distinction made in the passage in relation to human behavior?
以下哪一个选项最有可能为文章中所谈到的与人类行为有关的人类行为细节相对人类所受限制之间的差异,从人类形态的角度上提供了一个合适的类比?
29. A low number of algal cells in the presence of a high number of grazers suggested,but did not prove, that the grazers had removed most of the algae.
在存在大量食草动物的同时却只有少量的水藻花粉囊,这暗示出但没能证明食草动物已吞噬了大部分水藻。
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