【单选题】听力原文: The three American officials arrived at an airport to the west of Baghdad on the special UN flight from Bahrain. According to diplomats, they were promptly and politely asked by the Iraqis to tu...
【单选题】Federal officials should consider reopening public access to about three dozen Web sites withdrawn from the Internet after the Sept. 11, 2001, attacks, a government-financed study says, because the si...
【单选题】听力原文: NASA officials say, on Wednesday, one of three sensors (传感器) on Columbia's left-hand landing gear possibly indicated the device had begun to deploy (展开;配置) 30 seconds before all contact was lost...