单项选择题

The author seems to disapprove of ______.

A．political leaders' attitude to civil defense
B．citizens' awareness of self-protection
C．businesses' emergency plan
D．preparations made for the times of crisis

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单项选择题

This article most probably appears ______.

A．in Metro brochure
B．in a transportation journal
C．in a newspaper
D．in a police warning notice

单项选择题

According to Metro officials, they would like to ______.

A．waste some time wandering in the wake of the terrible bombings
B．regret later over something they should have done earlier
C．take precautions against any potential dangers at the expense of their time
D．wear plainclothes to protect passengers or repeat their request over and again