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单项选择题


A．enthusiastic
B．occasional
C．indifferent
D．underlying
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单项选择题A．extravagantB．deficientC．excessiveD．adequate

A．extravagant
B．deficient
C．excessive
D．adequate

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