四肢骨折拆除外固定后关节活动较差，其原因是
A．肌肉无力B．关节强直C．关节僵硬D．骨折复位不理想E．骨折尚未完全愈合
参考答案：C
When his wife died, he lived ______; his lovely pet dog made him feel less ______.
A．alone, alone
B．lonely; alone
C．lonely; lonely
D．alone; lonely
关于右心室肥厚，以下错误的是( )
A．Vl、V2呈R、Rs及qR型B．V．的R/S＞1C．Rv5≥2.5mVD．Rv1≥1.0mVE．心电轴右偏
