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- 问题详情：FormJulytoOctobereveryyear,aboutaquarteroftheworld’sbluewhalesfeedinthePacificOceanoffthecoastofCalifornia.Butthewhalesnowfaceamajorthreatintheirfavoritefeedingarea.Lotsofshipscarryingcargosailinthesameareaatthesametime.Alltoooften,ashipwill...
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