单项选择题

One criticism against many international airlines is that they have ______.

A．catered for the more wealthy people
B．given preferential treatment to executive clients
C．only met the needs of the regular traveler
D．marketed their service with the quantity of the travelers in mind

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单项选择题

From the passage we can infer that ______.

A．a successful airline in the 1980s meets the needs not only of the masses but also of the wealthy passengers
B．it is more comfortable to sit in the back of jet planes
C．business travelers dislike tourists
D．only by specializing in cheap flights can airlines avoid bankruptcy

单项选择题

The following are all used to attract passengers EXCEPT ______.[A] punctuality [C] free drinks[B] headsets [D] charge-free food

A．The following are all used to attract passengers EXCEPT ______.
B．punctuality
C．headsets
D．free drinks
E．charge-free food