首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
In the shallow end of Lake Tomwa, there are remains of numerous Jeffery pine trees that grew there during a lengthy drought. Res
In the shallow end of Lake Tomwa, there are remains of numerous Jeffery pine trees that grew there during a lengthy drought. Res
admin
2022-09-28
27
问题
In the shallow end of Lake Tomwa, there are remains of numerous Jeffery pine trees that grew there during a lengthy drought. Researchers had believed that this drought lasted at least 150 years, but carbon dating reveals that pines were growing in the lake bed for only 120 years, from 1200 until 1320. Since the Jeffrey pines, which cannot survive in water, must have died at the end of the drought, the dating shows that the drought lasted less than 150 years.
The argument given relies on which of the following assumption?
选项
A、No other species of tree started growing in the bed of Lake Tomwa after 1200.
B、No tree remains of any kind are present at the bottom of deeper parts of Lake Tomwa.
C、There was at least one tree in the lake bed that was alive for the entire period from 1200 to 1320.
D、There has not been a more recent drought that caused a drying up of the shallow end of the lake.
E、The shallow end of the lake had been dry for less than 30 years by the time Jeffrey pines started growing in the lake bed.
答案
E
解析
选项取反。在杰弗瑞松树出现之前,湖水干旱的时间已经超过30年了→再加上之后松树的120年→湖水干旱时间超过150年,而原文的结论是不到150年,因此该选项取反之后推翻原文,E正确。A项文章只讨论杰弗瑞松树能否用来证明干旱时间,而且发现的残留物也只有杰弗瑞松树,和其他树木物种没关系。B项讨论其他种类的树,无关。C项这些杰弗瑞松树生长在1200年至1320年的120年间是文中已提及的事实,属于重复原文,不选。D项文章只讨论杰弗瑞松树存在时期的那段干旱,至于有没有近期的干旱和文章无关,不选。
转载请注明原文地址:https://kaotiyun.com/show/jTVO777K
本试题收录于:
GRE VERBAL题库GRE分类
0
GRE VERBAL
GRE
相关试题推荐
Althoughgeneticmutationsinbacteriaandvirusescanleadtoepidemics,someepidemicsarecausedbybacteriaandvirusesthat
Sincetheearly1970’s,historianshavebeguntodevoteseriousattentiontotheworkingclassintheUnitedStates.Yetwhile
ThesettlementoftheUnitedStateshasoccupiedtraditionalhistorianssince1893whenFrederickJacksonTurnerdevelopedhisF
Manypeopleacquiresoftwareprogramsfortheirhomecomputersbyillegallycopyingthoseprogramsratherthanpurchasingthem.
Asapracticalmatter,thecopperavailableforindustrialuseshouldnotbethoughtofaslimitedbythequantityofcopperdep
Sevencountriessignedatreatybindingeachofthemtoperformspecifiedactionsonacertainfixeddate,withtheactionsofe
Currentlegislationthatrequiresdesignatedsectionsforsmokersandnonsmokersonthepremisesofprivatelyownedbusinessesi
Somegeologistsarguethatifoilisascommoninunsam-pledareasoftheworldasitisinthosealreadysampled,ourcurrente
Theprogramtocontroltheentryofillegaldrugsintothecountrywasafailurein19Iftheprogramhadbeensuccessful,thewh
21.DuringtheSecondWorldWar,about375,000civiliansdiedintheUnitedStatesandabout408,000membersoftheUnitedStat
随机试题
甲公司与乙公司签订一份借款合同,约定甲公司向乙公司借款100万元,利率为15%,期限为2018年1月1日至2019年1月1日。丙公司向乙公司提供担保,保证合同约定:“甲公司到期不还款,丙公司负还款责任,保证至甲公司全部本息还清时为止。”借款合同到期后,甲公
Whichoffollowingbestdescribesthemainideaofthepassage?______.Whatdoestheword"urge"inthelastparagraphofthe
关于纵隔血管前间隙内的正常成分,最佳描述的是
X线影像上,称为肺纹理的解剖结构的主要构成是
《中华医学杂志》第一次发表有关“药物相互作用的临床意义”综述是哪一年()
由于有不同的利润率,所以在估算开发利润时要弄清利润率的内涵,注意利润率与计算基数的相互匹配,即选取不同的利润率,应采用相应的计算基数,成本利润率的分母不包含()。
根据《中华人民共和国海关稽查条例》规定:被稽查人拒绝、拖延向海关提供账簿、单证等有关资料的,海关对其取消报关资格,处以1万元以上5万元以下的罚款。()
在经济处于扩张阶段时,个人和家庭应考虑减少配置()。
MoneyspentonadvertisingismoneyspentaswellasanyIknowof.Itservesdirectlytoassistarapiddistributionofgoodsa
Whendoestheconversationprobablytakeplace?
最新回复
(
0
)