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

1、[单选题]As in any business，there must be one person called ________who is highly trained，capable of directing a complex successful hotel．

• A、assistant manager
• B、resident manager
• C、vice manager
• D、general manager

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2、[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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3、[单选题]technological rather than psychological

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

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4、[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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5、[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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