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- 问题详情：Forgenerations,peoplehavedreamedoftravelingtoMarstoexploreEarth’sclosestplanetaryAmericanSpaceAgency,NASA,andotherspaceagencieshaveannouncedplanstosendpeopletotheRedPlanet.___16___.IntheUnitedStates,somevolunteersarelearninghowpeoplewillreac...
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