单项选择题

A．The threat of poisonous desert animals and plants.
B．The exhaustion of energy resources.
C．The destruction of oil wells.
D．The spread of the black soot from the fires.
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单项选择题
A．To look for a different lifestyle.B．To enjoy themselves.C．For adventure.D．For education.
A．To look for a different lifestyle.
B．To enjoy themselves.
C．For adventure.
D．For education.
填空题
It was believed that the most serious consequence spoiled children would have to face when they grew up was
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