[不定项选择题]
资料:American Airlines CEO takes blame for maintenance errors, disrupted flightsFriday, April 11,2008By TERRY MAXON and DAVE MICHAELS/The Dallas Morning NewsAmerican Airlines chairman and chief executiv
A、it has not done any inspections before
B、its airplanes are far too old to fly any more
C、it has not met the FAA maintenance standard
D、the fatality rate has doubled in the last 15 years