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jan 1, 1960 - 1960s 美国深潜器在水下数千米处发现了海洋生物群落，并且首次潜入世界大洋中最深的马里亚纳海沟

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#1960

美国是世界上最先进行深海研究的国家

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人教版高中历史|Chinese students' PEP SENIOR HIGH HISTORY TEXTBOOKS

8 months ago

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Date:

jan 1, 1960

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~ 65 years ago

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