The research team ran nineteen drills in three days. Some began with a mild warning over the intercom: “Ladies and gentlemen, this is your captain speaking. We will be encountering a line of thunderstorms in about ten minutes.” The rest began more urgently: “All passengers and flight attendants, please be seated immediately.” The more emphatic announcement prompted a quicker reaction. Still, at best, only two-thirds of the occupants were buckled up after seventy seconds. On average, the passengers needed a minute and a half to take their seats; the flight attendants, who had to stow their gear first, needed at least four minutes. Fully a third of the occupants were still out of their seats after seventy seconds.
Max: 1510.269 ms | 1265.217 ms
,更多细节参见下载安装汽水音乐
FT Professional,详情可参考体育直播
Путешествия для россиян стали еще дороже из-за конфликта на Ближнем Востоке20:37。业内人士推荐体育直播作为进阶阅读