便后肛门疼痛可能是() ["A．肛裂","B．肛瘘","C．血栓性外痔","D．内痔嵌顿","E．直肠癌"]
直肠癌根治手术应切除() ["A．可能有浸润的周围组织","B．癌肿上缘至少3cm的肠段","C．癌肿下缘至少5cm的肠段","D．子宫和部分膀胱","E．有关的肠系膜和淋巴结"]
肠结核溃疡特点()急性细菌性痢疾溃疡特点()肠伤寒溃疡特点()阿米巴痢疾溃疡特点()大肠癌溃疡特点() ["A．椭圆形溃疡，其长轴与肠管平行","B．带状溃疡，其长径与肠的长轴垂直","C．溃疡形状不规则，呈表浅地图状","D．烧瓶状溃疡","E．溃疡大，形状不规则，边缘隆起"]
肛瘘挂线疗法的机理是() ["A．与周围组织产生粘连","B．逐渐切开瘘管","C．括约肌不会突然回缩","D．使组织绞窄，坏死","E．可以引流瘘管"]
肠结核的好发部位是()肠伤寒的好发部位是()菌痢的好发部位是()大肠癌的好发部位是()阿米巴痢疾的好发部位是() ["A．乙状结肠、直肠","B．回肠末端","C．直肠","D．盲肠、升结肠","E．回盲部"]
流行性乙型脑炎()流行性脑脊髓膜炎()病毒性肺炎()
