2.2.2 面向对象重构版本（oop_crawler.py）
Not every modern human has the same set of Neanderthal DNA, however; different people will, by chance, have inherited different fragments. But there are also some areas, termed "Neanderthal deserts," where none of the Neanderthal DNA seems to have persisted. Notably, the largest Neanderthal desert is the entire X chromosome, raising questions about whether this reflects the evolutionary fitness of genes there or mating preferences.
，更多细节参见51吃瓜
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。关于这个话题，旺商聊官方下载提供了深入分析
Москвичей предупредили о резком похолодании09:45
SelectWhat's included。safew官方版本下载是该领域的重要参考