[主观题] 【翻译】 I have also had access to a wealth of documentary material,most of it unpublished.

1、[单选题]During the 1920s and 1930s，________ was one of the fastest growing segments of the international tourism industry．

• A、train tourism
• B、coach tourism
• C、cruise tourism
• D、air tourism

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2、[单选题]Wastage can be reduced by establishing standards ________which we can monitor the performance of travel agents．

• A、upon 
• B、with 
• C、against 
• D、within

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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]As the domestic tourism industry ____,competition will become increasingly ____.

• A、grows, intent
• B、develops, intent
• C、matures, intense
• D、strengthens, intense

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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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