第15题: [单项选择]男,35岁,间歇腹泻,粘液脓血便已4个月,发作时大便每天4~6次,伴里急后重感,大便常规白细胞+++/HP,红细胞++/HP假如第2天病人高热,头痛、嗜睡,血压降低,呼吸不规则,口唇紫绀,考虑为中毒性菌痢,其中毒机制是() A. 痢疾杆菌大量繁殖入血引起败血症 B. 病人特异性体质对细菌毒素产生强烈过敏反应 C. 痢疾杆菌产生内、外毒素,引起全身毒性症状 D. 结肠黏膜广泛坏死、溃疡形成 E. 机体免疫功能损伤 参考答案:B
第29题: [单项选择](a) Invite his roommate to a party
(b) Ask his roommate to go to the housing office
(c) Stop complaining about his roommate
(d) Arrange to get a different roommate 参考答案:C 答案解析:[听力原文]
M: It’s the 3rd time this week my roommate had a party in our room. This is really starting