扩胸扳法操作时，术者膝关节应顶住手术者的（）
A.1～2胸椎棘突处
B.1～4胸椎棘突处
C.5～7胸椎棘突处
D.8～10胸椎棘突处
参考答案：C
My life has changed a lot during the _____ years.[ ]
A. past a few
B. past few
C. a few past
D. few past
坯式
