短文朗诵及概括大意Passage1AsimplepieceofropehangsbetweensomeenvironmentallyfriendlyAmericansandtheirneighbors.Ononesidestandthosewhohavebeguntoseeclothesdryersaswastefulconsumersofenergy(upto6%oftotalelectricity)andpowerfulemittersofcarbondioxide(uptoatonofCO2perhouseholdeveryyear).Asanalte...

时间:2024-09-06 20:46栏目:高等教育