单项选择题 It seems oil ______ from this pipe for some time. We'll have to take the machine apart to put it right.    A. had leaked    B. is leaking         C. leaked         D. has been leaking

单项选择题 产妇,32岁,妊娠38周,于某日2:30pm顺产。6:40pm病人主诉腹胀、腹痛。视诊:下腹膀胱区隆起;叩诊:耻骨联合上鼓音。护士判断该产妇存在的健康问题是 A. 分娩后疼痛 B. 体液过多 C. 尿路感染 D. 尿潴留 E. 产褥热

单项选择题 苯丙酮尿症最重要的治疗措施是 A. 低苯丙氨酸饮食 B. 甲状腺素替代治疗 C. 新生儿筛查 D. 加强生活护理 E. 加强行为训练