单项选择题

A: Our flight is behind the schedule again.
B: ______

A．When was it cancelled
B．That's annoying.
C．Can we check in our luggage
D．That is too late!

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多项选择题

Disaster psychology refers to the study of how to______.

A．avoid human-created disasters
B．cope with human reactions to disasters
C．reduce the worst natural disasters
D．prevent growing terrorism

单项选择题

A．as
B．being
C．of
D．for

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