细菌性痢疾的肠道病变特点为（） ["A.化脓性炎","B.假膜性炎","C.肉芽肿性炎","D.出血性坏死性炎","E.蜂窝织炎"] 伤寒带菌者细菌一般居留在（） ["小肠","结肠","胆囊","肝脏","肾脏"] 伤寒增生的细胞是（） ["淋巴细胞","中性粒细胞","嗜酸性粒细胞","红细胞","单核巨噬细胞"] 伤寒患者血清肥达反应阳性出现于病程的（） ["第1周以后","第2周以后","第3周以后","第4周以后","第5周以后"] 伤寒肠道病变的好发部位是（） ["空肠","回肠下段","回肓部","横结肠","乙状结肠"] 伤寒主要累及（）