Adamisaman-madestructurebuiltacrossariver.Mostdamsarebu...
问题详情：Adamisaman-madestructurebuiltacrossariver.Mostdamsarebuilttocontrolariver’swaterflow,improvenavigationandcontrolflooding.However,somedamsarebuilttoproducehydro-electricpower.Hydro-electricpow...