英语四级
第3题答案________
A．Finding cheaper ways of highway construction.
B．Generating electric power for passing vehicles.
C．Providing clean energy to five million people.
D．Testing the efficiency of the new solar panel.
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A．They can stand the wear and tear of natural elements.
B．They can be laid right on top of existing highways.
C．They are only about half an inch thick.
D．They are made from cheap materials.
第5题答案________
A．Endless fighting in the region.
B．The hazards from the desert.
C．Inadequate funding for research.
D．The lack of clues about the species.
A．To observe the wildlife in the two national parks.
B．To identify the reasons for the lions’ disappearance.
C．To study the habitat of lions in Sudan and Ethiopia.
D．To find evidence of the existence of the “lost lions”.
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至 第 56 题 Section A Directions: In this sec
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