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It is said that sixty percent of all energy ( ) in the world today is being lost as wasted heat.A.producing B.produced 选A被动?请给易懂的解析,以及句子翻译?.
题目内容：
It is said that sixty percent of all energy ( ) in the world today is being lost as wasted heat.
A.producing B.produced
选A被动?请给易懂的解析,以及句子翻译?.
It is said that sixty percent of all energy ( ) in the world today is being lost as wasted heat.
A.producing B.produced
选A被动?请给易懂的解析,以及句子翻译?.
A.producing B.produced
选A被动?请给易懂的解析,以及句子翻译?.
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