通过对河道演变原因及河床形态的分析，得出松花江依兰—佳木斯江段河道演变的特点。
This paper presents the river course evolution of Yilan to Jiamusi reach through analyzing evoluting reason and river bed formation.
如果他的假设正确，则在1918年冬天爆发的第二波流感变得更加致命的原因很可能不是因为病毒的演变而是因为细菌感染在冬季更加常见。
If he's right, it is possible the second, winter wave of 1918 flu was more deadly not because of viral evolution but because bacterial infections are more common in winter.
它不仅例举了大量的反证，而且还就移情作用的如何演变及其原因，以及如何与自我意识相关等问题提供了指导。
It offers not only plenty of examples to the contrary, but also some hints as to how and why empathy evolved, and how it might be related to self-awareness.
应用推荐