人体每天都要通过泌尿系统排出尿液 以调节机体内水分和无机盐的平衡 有意识的排尿是受中枢神经系统控制的一种复杂反射 出卷� Template




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tomski人体每天都要通过泌尿系统排出尿液 以调节机体内水分和无机盐的平衡 有意识的排尿是受中枢神经系统控制的一种复杂反射 coloring