說明文閱讀訓(xùn)練題集 (精選范文)

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1、說明文閱讀訓(xùn)練題集(精選范文)說明文閱讀訓(xùn)練題集(有答案)人類能在地球上生活多久（節(jié)選）何祚庥①人類能在地球上生活多久？這既涉及可持續(xù)發(fā)展戰(zhàn)略，涉及地球為人類的生存和發(fā)展所提供的資源，也涉及地球的外在環(huán)境究竟能在多少年內(nèi)維持不變。②太陽是決定地球外在環(huán)境最重要的因素。根據(jù)近代天文學(xué)家的理論，太陽將持續(xù)而穩(wěn)定地向地球提供光和熱，地球繞太陽旋轉(zhuǎn)的平均半徑，將長期維持不變，至多只有極小的擺動，這一過程將至少還持續(xù)40億年。過了40億年后，太陽將逐漸膨脹而演化為紅巨星，最后將地球完全吞吃到它的“肚子”里。③太陽對地球的影響實在是太巨大了，“只要太

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

3、nualwork,topromotetheuseoftwomanualsinthecity'sorganizationsatvariouslevels.Thecountycommittee,directlyunderthegroup(work)isunderthejurisdictionofgrassrootsLeagueandgroup(total)usingbranchratioshallnotbelessthan70%.Three,tofurtherstrengthenthegroup'sleadershipandteambuild

4、ing(a)tostrengthentheleague'sleadershipatalllevelsofconstruction.ContinuetodoagoodjobofmunicipalPartyCommitteeOrganizationDepartment"onthestrengtheningoftheCommunistYouthLeaguecadresmanagementopinionsimplementation.Topromotethegroupcounties(autonomouscounties,cities)Commi

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

8、ngsystem.(two)tostrengthentheworkofeducationandtrainingofcadrestoconscientiouslyimplementtheCent