51. The Netherlands plans to start building floating communities on water because .
A. most parts of the country are covered by water
B. the country is constantly threatened by floods
C. it will promote the cultivation of flowers
D. people think it better to live on water
52. By citing“Everyone asks why didn’t we do this kind of thing before”，the author wants to tell us that .
A. building floating communities is a very good idea
B. the director of the firm didn’t want to answer the question
C. the Netherlands should follow the example of Bangladesh
D. people are not satisfied with the government’s work
53. The floating houses will be .
A. reinforced with steel B. made of concrete
C. constructed in water D. built on boats
54. According to the author，the floating communities on water .
A. can promote market gardening
B. are beyond the reach of most Dutch people
C. will increase the cost of gardening
D. will be very popular by the year of 2005
55. “10 projects in the pipeline”in the last paragraph means .
A.“10 pipelines to provide gas”
B.“10 companies to lay the pipelines”
C.“10 floating houses to be built on water”
D.“10 building projects planned and started”
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