A-A+
Confusion and tiredness usually happen to thos
问题详情
Confusion and tiredness usually happen to those flight crews on international routes because most probably they have to suffer the differences in time zones.
A．Y
B．N
C．NG
参考答案
正确答案：A
解析：根据本文Working Conditions部分最后一段“Flight crews，especially those on international routes，often suffer jet lag—disorientation and fatigue caused by flying into different time zones．”本文把这种因时差导致的疲劳和困惑称为jet lag。
