______ Chief Engineer, as his family had expected, made his father happy and proud.

A．Mike being appointed

B．Mike’s appointed

C．Mike appointing

D．Mike’s being appointed

对影像半影模糊的控制阈值为：()

A．0.02 mm

B．0.20 mm

C．0.25 mm

D．0.5 mm

E．0.6 mm