人工气腹对心血管影响为() ["A．血压升高","B．心排量下降","C．血压下降","D．外周阻力增加","E．以上都是"]
预防呼吸系统感染有哪些措施?
巨大卵巢肿瘤难以平卧的病人，最适麻醉选择是() ["A．连续硬膜外麻","B．气管内插管全麻","C．脊麻","D．针刺麻醉","E．局麻与强化"]
一般类型上呼吸道感染有哪些临床表现特点?
肝硬化病人应用下列哪种药可引起药效时间延长() ["A．筒箭毒碱","B．芬太尼","C．吗啡","D．硫喷妥钠","E．以上均可"]
简述肺炎合并心力衰竭的临床表现。
