股骨干轴线与胫腓骨轴线的偏斜角度是（）
A.5°
B.10°
C.15°
D.20°
E.25°
参考答案：B
____parents say and do has a life-long effect on their children.
A．That
B．Which
C．What
D．As
ambn+6与5a2n+1b3m+3是同类项，则m-2005n的值是______．
