中央型腰椎间盘突出症出现马尾神经受压症状，治疗方法应选择( )
A．卧床休息B．推拿按摩C．手术治疗D．骨盆牵引E．背肌锻炼
参考答案：C
While _____ football on tin playground, I found ’my keys ______.
A．playing, lost ,
B．play, losing
C．played, being lost
D．having played, lost
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