概述 排泄和排泄的途径 Excretion and the way of excretion Gao Feng, Dept of Physiology, 2017/4/11 YAU2017/4/11 Gao Feng, Dept. of Physiology, YAU 2 概述 一、排泄和排泄的途径 Excretion and the way of excretion