The processing of sewage(污水) requires considerable amounts of electricity. Many sewage treatment plants in the U.S. have become

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问题 The processing of sewage(污水) requires considerable amounts of electricity. Many sewage treatment plants in the U.S. have become self-sufficient by using the methane gas (沼气)given off by sewage.

选项

答案污水处理需要大量的电。美国的许多污水处理厂通过使用污水排放出的沼气实现电的自给自足。

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成人本科学位英语

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The processing of sewage(污水) requires considerable amounts of electricity. Many sewage treatment plants in the U.S. have become

成人本科学位英语

Morethan30000driversandfrontseatpassengersarekilledorseriouslyinjuredeachyear.Ataspeedofonly30milesperho

Artificialflowersareusedforscientificaswellasfordecorativepurposes.Theyaremadefrom【C1】______ofmaterials,suchas

______thatasocietyliketheNationalSocietyforthePreventionofCrueltytoChildrenisstillneededinacivilizedcountry?

InternetpiracyreferstotheuseoftheInternetforillegallycopyingordistributingunauthorizedsoftware.Inthesecasesth

Whatbeganwiththeinventionofthetelephonein1876hastodaybecomeaglobalnetofcables,satellites,transmitters,andre

Historically,althoughthechildrenofimmigrantsmayhavegrownupbilingualandbicultural,manydidnotpassonmuchoftheir

Itisdifficulttoimaginewhatlifewouldbelikewithoutmemory.Themeaningsofthousandsofeverydayperceptions,thebases【

Whichofthefollowingcountrieshasenjoyedthefastesteconomicgrowthinhistory?Thepassagemainlydiscusses——．

Iwonderifyourealizejusthowmanyothersshareyourproblem.Itissocommonforpeopletodistortthetruthaboutthemselve

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