膝关节骨性关节炎最初始的病理损害发生于（）
A.关节软骨
B.关节滑膜
C.软骨下骨
D.十字韧带
E.关节囊
参考答案：A
The government must raise the living standard of the people as soon as ______ (impossibility).
森林采伐方式有几种？
