- 問題詳情:DeathValleyisoneofthemostfamousdesertsintheUnitedStates,coveringawideareawithitssand.Almost20percentofthisareaiswellbelowsealevel,andBadwater,asaltwaterpool,isabout280feetbelowsealevelandthelowestpointintheUnitedStates. LongagotheIndians...
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