休克的根本原因为()。 ["组织细胞受累","低血压","酸中毒","心功能不全","尿少"]
缝合时防止创缘过度内卷和外翻的目的是() ["防止出血","防止感染,促进愈合及愈合后瘢痕不明显","增加接触面积","减小创口张力","可以缝合得较紧,不容易裂开"]
关节畸形、骨性强直属于关节病变的() ["Ⅰ期","Ⅱ期","Ⅲ期","Ⅳ期","Ⅴ期"]
可摘局部义齿固位体必须具备的条件中不包括() ["有固位作用","对基牙不产生侧向力","显露金属要少","必须选用同种类型的卡环","不损伤口内的软硬组织"]
脑血栓形成最常发生于下列哪条动脉() ["大脑前动脉","颈内动脉","大脑中动脉","大脑后动脉","椎基底动脉"]
心室扑动的心电图特点。