非炎症性、化脓性鹰嘴滑囊炎患者的主要主诉是() ["A．痛性肿胀","B．无痛肿胀","C．肘屈曲减少","D．发热","E．不适"]
简述胸外心脏按压的机制。
关于肱二头肌腱断裂，正确的叙述是() ["A．最常发生于肱二头肌腱长头近侧端","B．最常发生于年青的男性重体力劳动者","C．最常发生于肱二头肌腱远端","D．在老年、静坐者中少见","E．最常发生于肱二头肌腱短头"]
颌顶位又称为() ["A．顶颌位 ","B．下上轴位","C．上下轴位 ","D．额鼻位","E．后前位"]
下列说法正确的是() ["A．脊神经由横突孔穿出","B．椎体两侧有椎动脉经各椎间孔进入颅内","C．颈椎后侧方左右各有一交感神经干","D．椎体后方的椎弓围成椎管，内有脊髓","E．颈椎是脊柱各椎体中体积最小的椎体，且为最灵活的椎节"]
试述多发伤的临床特点。
