______burning coal, oil and gasoline are responsible for the globing warming? ______wind power is a better alternative as sourc

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问题 ______burning coal, oil and gasoline are responsible for the globing warming?
______wind power is a better alternative as source of energy?

选项 A、 
B、 
C、 
D、 

答案A

解析 A是关于风能的报道。
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