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Before Artemis II heads to the Moon, the first two days of their mission will be spent in orbit around the Earth.

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。业内人士推荐Line官方版本下载作为进阶阅读

KlefkiIntroduced in Gen VI (2013)

二是神舟二十三号飞行乘组中的1名航天员，将开展一年期驻留试验，而目前均为半年。