清创后若伤口内放置橡皮引流片，一般取出的时间为() ["A．8～12小时","B．12～18小时","C．18～24小时","D．24～48小时","E．48～72小时"]
现场急救对伤员抢救时应紧急处理的是() ["A．休克","B．止血","C．窒息","D．骨折","E．颅脑损伤"]
对开放性骨折伴动脉出血，导致休克的患者进行急救，首先应() ["A．骨折复位","B．止血","C．输液","D．临时固定","E．包扎伤口"]
月经过多，色淡质稀是因月经过少，腰酸乏力是因 ["A、血热","B、气虚","C、血虚","D、血瘀","E、精血亏虚"]
半数致死量(LD)与半数有效量(ED)比值为效价。()
尿渗透克分子浓度()血浆渗透克分子浓度()胶体渗透压()容积渗透克分子浓度()细胞外液()
