- 问题详情: Theoceansareuniquetoourplanet.Nootherplanetinoursolarsystemhasliquidwater.Theoceanscoverabout70%oftheearth'ssurface. Theycontainabout97%oftheearth'swatersupply.Lifeonearthoriginatedintheseas.Theoceanscontinuetobehometoanincrediblenumbero...
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