【题目】 In October 1970, the Rail Passenger Service Act ______.

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]Charter services do not operate according to _____.

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

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3、[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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4、[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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5、[单选题]The realization of one's desire to travel depends on many complex social and political factors, including the social _____ of the destination.

• A、change
• B、awareness
• C、policy
• D、stability

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