男性,20岁、在一次战斗中,子弹射入股内侧,12h后被送入医院。患处胀裂样剧痈,患处皮肤水肿、苍白在患处可触及捻发音,伤口处肌肉变为紫黑色。下列治疗措施中错误的是() ["A.采用全身麻醉","用止血带","病变区广泛.多处切开","切除无活力的肌组织","敞开伤口"]
室间隔缺损病人,宜早期体外循环下行心内直视修补术时,分流量多() ["超过20%","超过30%","超过40%","超过50%","超过80%"]
X线诊断大叶性肺炎最主要的影像依据是() ["肺大叶性阴影","支气管充气征","两肺多发大片影","肺纹理模糊增重","横膈运动受限"]
男性,20岁、在一次战斗中,子弹射入股内侧,12h后被送入医院。患处胀裂样剧痈,患处皮肤水肿、苍白在患处可触及捻发音,伤口处肌肉变为紫黑色。X线检查发现特征性改变是() ["A.肌群间有液体","肌群间有气体","肌群间育钙化","X线元异常发现","骨折"]
下列哪一类肿瘤不属于原发性恶性骨肿瘤() ["成软骨细胞瘤","骨纤维肉瘤","脊索瘤","尤文肉瘤","骨髓瘤"]
330MW机组一次风机如何并列?