________isnodoubtthatusingenergye

发布时间：2020-07-09 20:34:59

________ is no doubt that using energy efficiently reduces the release of greenhouse gases













A.It












B.This











C.That











D.There

网友回答

D解析考查句型：there is no doubt that毫无疑问做某事。句意：毫无疑问有效地使用能源会减少温室气体的释放。故选D。
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