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

1、[单选题]In 1981 the WTO has urged national tourism organizations ______ foreign nationals in their country as domestic travelers.

• A、to include
• B、included
• C、not to include
• D、including

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2、[单选题]technological rather than psychological

• A、knowledge
• B、preservation
• C、development
• D、and

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3、[单选题]The sum of all incomes in a country is called the________ ．

• A、economic income
• B、productive income
• C、financial income
• D、national income

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4、[单选题]The removal of coral, either for souvenirs collected by the public or for commercial sale by tourist enterprises, ______ some coastal regions of Australia and elsewhere.

• A、develops
• B、threatens
• C、promotes
• D、improves

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5、[单选题]When going on holidays, which group will think more about their social status?

• A、Tourists taking holidays for educational purposes.
• B、People going on adventure holidays.
• C、Those travel for travel's sake.
• D、Those who travel for cultural events.

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