CS性能统计数据的数据库表名是（）
A.CN_PM
B.CN_R_UNIT
C.CN_R_SUBIT
D.CN_R_MS
参考答案：A
胸椎骨折脱位伴脊髓损伤患者，双下肢出现不全瘫，查体：侧卧位能屈髋，仰侧卧位不能屈髋。肌力是几级
A．1级
B．2级
C．3级
D．4级
E．5级
They must have been enjoying themselves there, or they _____ so long. [ ]
A. wouldn’t stay
B. wouldn’t have stayed
C. needn’t have stayed
D. couldn’t stay
