耻骨角的正常值为（）。
A.60°～70°
B.70°～80°
C.80°～90°
D.90°～100°
E.100°～110°
参考答案：D
APZ21240的UPBB板卡具有下述哪些功能？（）
A.提供PTBUS的连接
B.提供CP两边的UPDATEBUS
C.提供CDU的连接
D.提供风扇告警的连接
E.提供IO-BUS的连接
He _______ for ten minutes by the time I got there. [ ]
A. has left
B. left
C. has been away
D. had been away
