单项选择题

A．How the survival skills of the early people influenced their diets.
B．This need to learn how to save money;
C．The increasingly complex relationship between values and the use of money.
D．The difficulty of trading larger and larger amounts of good.
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单项选择题
A．It is the best city he’s ever visited.B．It was worse than he had expected.C．It is difficult to get around in the city.D．The hotel service is terrible in the city.
A．It is the best city he’s ever visited.
B．It was worse than he had expected.
C．It is difficult to get around in the city.
D．The hotel service is terrible in the city.
填空题
unattractive
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