He looked rather untidy as there were two buttons _____ from his coat.

A．loosing

B．losing

C．off

D．missing

法律职业道德是指法官、检察官、律师等专职从事法律职业的专业人员所应遵循的( )总和，它是社会道德在法律职业领域中的具体体现。

A．道德规范

B．行为规范

C．责任规范

D．法律规范