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【单选题】
关于乡红细胞的生理特征,下列叙述正确的是A.
红细胞生成素（EPO）可以促进红细胞的生成
B.
晚幼红细胞通过网织红细胞
C.
红细胞的主要生理功能是通过其内含的血红蛋白来完成的
D.
从红系祖细胞发育为完全成熟的红细胞，这全部过程约需120天
E.
衰老的红细胞主要在脾脏破坏
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