seaexplorerint的知识精选

RobertBallardisprobablythemostfamousdeep-seaexplorerint...
问题详情:RobertBallardisprobablythemostfamousdeep-seaexplorerinthepast100years.Whileheisbestknownforhishistoricdiscoveryofthewreckage(残骸)oftheR.M.S.Titanicwhichsanktothebottomoftheseain1912,healsodis...
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