Selig formally announced on Thursday his intention to retire in January 2015. “It re­mains my great______to serve the game I have loved throughout my life.” he said.

A．contribution

B．pattern

C．competition

D．privilege

伴有恶性贫血的慢性胃炎是

A．慢性浅表性胃炎

B．巨大肥厚性胃炎

C．疣状胃炎

D．A型慢性萎缩性胃炎