单项选择题

Questions 29 to 31 are based on the passage you have just heard.

A．Education.
B．Public security.
C．Administration.
D．Transportation.
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单项选择题
A．Cocktail.B．Gum.C．Earphone.D．Computer.
A．Cocktail.
B．Gum.
C．Earphone.
D．Computer.
单项选择题
Why Americans cannot eat elaborately prepared meals at leisure
A．Because they don’t like cooking themselves.
B．Because there are more choices in the restaurants.
C．Because they have many things to do.
D．Because they can do nothing at leisure.
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