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用于播放 HTML5 音频文件的正确 HTML5 元素是：（）
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900 句 T or F769（19words）Passengers are being evacuated because the flaps of the plane hit a fuel truck.[音频]
900 句 T or F 810 （19words）The purser is providing first aid to injured passengers.[音频]
900 句 T or F 428 （20 words）Before passing BKM VOR, the aircraft speed should be Mach number decimal 84.[音频]
900 句 T or F 505 （20 words）An appropriate alternative airport should not exceed 20 minutes flight time.[音频]
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