尺骨的结构有（）
A.滑车切迹
B.桡切迹
C.尺切迹
D.冠突
E.鹰嘴
参考答案：A, B, D, E
City life often provides us more convenience and entertainment than country life, but not ______quiet and easy.
A．as
B．too
C．much
D．still
印刷纸的水分平衡及水分高低对印刷的影响？
