单项选择题

What would happen to some countries if they don't have tourism

A．Their economies would be mined.
B．It would keep their economies going.
C．There would be no more environmental pollution there.
D．People have no chance to travel there.
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单项选择题
Countries sometimes spoil their beauty spots because______.
A．they are too poor to build beautiful hotels on them
B．they have to cut down trees in order to build hotels on them
C．they have to sell them to borrow money from foreign banks
D．they are lacking experience of building hotels
单项选择题
What can we learn from the last paragraph
A．Governments tend to abuse their supreme power in times of war.
B．In times of war governments may extend their power across national borders.
C．In times of war governments impose high religious and ethical standards on their people.
D．Governments may sacrifice individuals in the interests of the state in times of war.
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