题目

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 解析: 本题考查在语境中使用动词的能力。四个选项中只有exploit (开发)能够与mine, forest, hydropower共同搭配使用。

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