[主观题] 【翻译】 The first thing the secretary does is to sort out the pile of documents and letters on his desk.

1、[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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2、[单选题]WTO is _____ that represents all national and official tourist interests.

• A、the only organization
• B、one of the organizations
• C、a regional international organization
• D、a national organization

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3、[单选题]Local people usually see tourism as a cultural and________ factor．

• A、historical
• B、business
• C、employment
• D、education

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4、[单选题]Charter services do not operate according to _____.

• A、middleman's orders
• B、charted routes
• C、agreed practices
• D、published timetables

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5、[单选题]Ecotourism is one of the most rapidly growing form of specialized travel in the West，with central American countries，such as Costa Rica，________the principal destinations at present．

• A、be 
• B、to be 
• C、being  
• D、been

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