问题
选择题
The natural resources, such as mine, forest, and hydropower (水电) in that area have been ________. [ ]
A. developed
B. exploited
C. improved
D. expanded
答案
答案：B
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The natural resources, such as mine, forest, and hydropower (水电) in that area have been ________. [ ]
A. developed
B. exploited
C. improved
D. expanded
答案：B