What can lower the price of wind-generated electricity?

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问题 What can lower the price of wind-generated electricity?

选项 A、Greater winds.
B、Slightly larger windmills.
C、Computerized controllers of less cost.
D、Stronger competition.

答案C

解析细节题。预读题目时可推测跟题目相关的部分应该会谈到具体数字的下降，而文章最后提到了某些具体数值，谈及通过降低计算机控制部分的成本来减少最终价格，故选C。

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专业英语四级

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