【题目】 Resources are a fundamental _______ in the development of tourism.

1、[单选题]In October 1970, the Rail Passenger Service Act ______.

• A、put into practice
• B、was put inot practice
• C、was practice
• D、practised

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2、[单选题]The entire tourism industry rests on a base of_______.

• A、national economy
• B、natural resources
• C、hotel and transportation
• D、government policy

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3、[单选题]Since China opened to the outside world in ________，the number of hotels has increased considerably．

• A、1970 
• B、1978 
• C、1980 
• D、1997

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4、[单选题]Standardization and rigidity are very clear characteristics of ____ tours offered on al arge scale.

• A、international
• B、in-bound
• C、package
• D、business

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5、[单选题]Airlines will________ to allow for the high number of________ ，but must exercise caution．

• A、overbook, independent travelers 
• B、overbook, no-shows
• C、underbook，business travelers 
• D、underbook，repeat travelers

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