说明文阅读训练题集 (精选范文)

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1、说明文阅读训练题集(精选范文)说明文阅读训练题集(有答案)人类能在地球上生活多久（节选）何祚庥①人类能在地球上生活多久？这既涉及可持续发展战略，涉及地球为人类的生存和发展所提供的资源，也涉及地球的外在环境究竟能在多少年内维持不变。②太阳是决定地球外在环境最重要的因素。根据近代天文学家的理论，太阳将持续而稳定地向地球提供光和热，地球绕太阳旋转的平均半径，将长期维持不变，至多只有极小的摆动，这一过程将至少还持续40亿年。过了40亿年后，太阳将逐渐膨胀而演化为红巨星，最后将地球完全吞吃到它的“肚子”里。③太阳对地球的影响实在是太巨大了，“只要太

2、阳吼一吼，地球立即抖一抖”organizationsystemandworkingmode,theselectionofanumberofmunicipalstrengtheninggrouptobuildinnovationandstrengthentheorganizationofthebasiclevelorganizationsadvancedmodel.(seven)themanualworkoftheCommunistYouthLeagueOrganizationpublished<>and<>Leaguebranchofma

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7、ksystemgroupToweaveindividualconversationandcollectiveconversation,tostrengthenthecommitteesofalllevels,theStandingCommitteeoftheStandingCommittee,theestablishmentofasoundsystemofcentralgrouplearning,thesystemofinvestigationandstudy,thesystemofimportantissuesandthereporti

8、ngsystem.(two)tostrengthentheworkofeducationandtrainingofcadrestoconscientiouslyimplementtheCent