It is said that sixty percent of all energy in the world today is being lost as wasted h

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解决时间 2021-12-25 17:28

提问者网友：我没有何以琛的痴心不悔
2021-12-25 14:01

It is said that sixty percent of all energy in the world today is being lost as wasted heat.
A. produced
B. producing
C. to produce
D. having produced

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五星知识达人网友：思契十里
2021-12-25 14:55

(答案→)A. producedB. producingC. to produceD. having produced解析：A 考察非谓语动词。据说现在世界上生成的所有能源的百分之60都是以废热的形式浪费掉了，produce和句子谓语is之间满意连词，故使用非谓语形式。Produce和逻辑主语energy之间逻辑上构成被动关系。用过去分词做后置定语。故A正确。

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1楼网友：独行浪子会拥风
2021-12-25 16:06

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