患者,男,73岁。其因脑梗死卧床15年,3日前突然出现左下肢凹陷性水肿,皮薄光亮,皮温升高,皮色红。该患者诊断应为() ["血栓性浅静脉炎","血栓性深静脉炎","动脉硬化闭塞症","游走性浅静脉炎","以上均不是"]
既能祛风湿,又能退虚热的药物是() ["独活","秦艽","防己","狗脊","川乌"]
各种流产的临床特点,正确的是()。 ["完全流产:腹痛,宫口松","先兆流产:宫口闭,出血量少","难免流产:出血少,未破水","不全流产:宫口闭,出血减少","稽留流产:腹痛持续一个月"]
过期妊娠表现为() ["胎动减少","NST无反应型","OCT阳性","A、B、C均有","A、B、C均无"]
患者,男,42岁。症见左下肢皮色紫暗,抬高时苍白,足背毳毛脱落,皮肤肌肉萎缩,趾甲变厚,趺阳脉搏动消失,患肢疼痛持续,夜间为重,舌暗红,脉沉细而涩。医生当提醒该患者注意() ["戒除吸烟嗜好,注意患肢保暖","抬高患肢","卧床休息,减少活动","着弹力袜或弹力绷带","以上都不是"]
离心式压缩机的主要特点是什么?