参考文献
预防医学

        [1] DARWIN C,WALLACE A. On the tendency of species to form varieties and on the perpetuation ofvarieties and species by natural means of selection[C]//Proceedings of the Linnaean Society. [S.l.:s.n.],1858:45-62.[2] BAKER PT. Human adaptation to high altit    （共 17833 字）     [阅读本文] >>