题目内容：
Whichexitssuggestedinthepassageshouldanairlinepassengerlocatebeforetakeoff?A．Theonesatthebackoftheplane.B．Thenearestone.
C．Theonesthatcanbefoundinthedark.
D．Thetwoclosesttothepassenger’sseat.
Accordingtothepassage,peoplehavemorechancestosurvivefiresinaircraftifthey______. A．keeptheirfeetflatonthefloor
B．keeptheirheadslow
C．fastentheirseatbeltstightly
D．readairlinesafetystatisticsbeforetakeoff
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答案解析：