单项选择题

The author's purpose of writing this passage is to ______.

A．argue that travel is an important industry
B．show travel industry's important role in nation building
C．encourage people in the tourism industry to do more for poverty
D．point out that the travel industry has social, cultural as well as economic value
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单项选择题
The reason tourism benefits a country even more than traditional industries is that it ______
A．requires much less capital
B．has more of a cultural benefit
C．has more potential to lead to other industries
D．uses less resources which harm the environment
单项选择题
Why does the author assert that through travel We only truly touch one another
A．Because he believes tourism makes it possible for people to help one another.
B．Because he thinks that sincere learning of a culture is only possible by travel.
C．Because he believes travel is the only way which can mix up different cultures.
D．Because he wants to emphasize tourism's powerful effect on combating social problems.
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