方法：应用半薄切片和超薄切片技术行光镜及电镜观察大鼠直肠肛梳区的淋巴管结构。
METHODS: The lymphangial configuration was observed under a light microscope and a transmission electron microscope by using semi-thin sections and ultra-thin sections technique respectively.
结果表明，棕色田鼠对同种个体肛殖区和面部的嗅闻频次及嗅闻持续时间最多（P< 0 0 5 ） ；
Results showed that Mandarin voles displayed a greater number of investigations for anogenital region (A R) and face than for any other body part ( P< 0 05);
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