单项选择题

A．Make all the regions the same.
B．Take control away from the regions during heavy traffic and bad weather.
C．Buy new computers for all the airports.
D．Study the problem of airport delays.
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单项选择题
A．He thinks Mr. Smith is mean.B．He respects Mr. Smith very much.C．He wants to go on working for Mr. Smith.D．He thinks Mr. Smith is very generous.
A．He thinks Mr. Smith is mean.
B．He respects Mr. Smith very much.
C．He wants to go on working for Mr. Smith.
D．He thinks Mr. Smith is very generous.
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thought
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