单项选择题

It can be inferred that the Federal Aviation Administration employee ______.

A．had repeatedly complained to his employer
B．did not get any response from his employer
C．was concerned about public security
D．became brave after the 9.11 disaster
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单项选择题
According to the third paragraph, informants among the American federal employees ______.
A．disclose misbehavior externally when they are disappointed internally
B．get more protection than people who disclose misbehavior externally
C．have less rights than prisoners
D．get as much protection as before
单项选择题
Why does the author mention the fact that shirts are once more being tucked into trousers
A．To show that people do so to follow the new economy trendsetters.
B．To point out a typical phenomenon in America's congenitally casual west coast.
C．To indicate the fact that people try to dress in a less casual way.
D．To prove suits and ties are not popular among people.
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