单项选择题

We can infer from the passage that______.

A．computer networking will be helpful in the food industry
B．24-hour supermarkets are not very common
C．few shopping centers are three-shift open at any hour
D．24-hour restaurants are not in practice in the great business capitals

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单项选择题

A．There is nothing wrong with diet.B．One should combine diet with exercise.C．Exercise does more good than diet does.D．Diet does not do any good to people.

A．There is nothing wrong with diet.
B．One should combine diet with exercise.
C．Exercise does more good than diet does.
D．Diet does not do any good to people.

单项选择题

From the first two paragraphs we can learn that the trend of food obsession is______.

A．adventurous
B．more and more popular in the world
C．a global phenomenon
D．sweeping up every comer of the earth