环保类阅读模拟训练(一)Overthepast40years,landsubsidence(地面沉降)hascausedCangzhou,Hebeiprovince,,,,likebreaksinpipelines(管道)andlakesdryingup,andmayhaveabadinfluenceonthesafetyofsubways,high--Shanghaihigh-speedrailwayistorunsafelyat380kmperhour,railwayfoundations(地基)-NorthWaterDiversionProject(南水北调工程),however,--,’sthemainreasonforlandsubsidenceinthenorthofChina?-,-,Hebei,(白炽的)lightbulbsonNovember4,(进口)andsalesof100-watt(瓦特)orhigherincandescentlightbulbswasnotallowedfromOctober1,,importsandsalesoflowerwattbulbswillalsobe
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