该患者的诊断应考虑
A.L2~3椎间盘突出B.L3~4椎间盘突出C.L4~5椎间盘突出D.L5~S1椎间盘突出E.马尾综合征
参考答案:D
到肯德基、麦当劳吃快餐,因为它们是现做现卖,所以不用担心食品的安全问题。 ( )
Professor Johnson’s retirement () from next January.
A. carries into effect
B. takes effect
C. has effect
D. puts into effect