FirstFT: the day's biggest stories
德索托的理论并非纸上谈兵。他曾亲自参与秘鲁的改革，而且一度取得显著效果。
，这一点在safew官方版本下载中也有详细论述
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.
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