首页
登录
职称英语
Because dinosaurs were reptiles, scientists once assumed that, like all reptiles
Because dinosaurs were reptiles, scientists once assumed that, like all reptiles
游客
2025-02-26
56
管理
问题
Because dinosaurs were reptiles, scientists once assumed that, like all reptiles alive today, dinosaurs were coldblooded. The recent discovery of dinosaur fossils in the northern arctic, however, has led a number of researchers to conclude that at least some dinosaurs might have been warmblooded. These researchers point out that only warm-blooded animals could have withstood the frigid temperature that are characteristic of arctic winters, whereas cold-blooded animal would have frozen to death in the extreme cold. Which one of the following, if true, weakens the researchers’ argument?
选项
A、Today’ s reptiles are generally confined to regions of temperate or even tropical climates.
B、The fossils show the arctic dinosaurs to have been substantially smaller than other known species of dinosaurs.
C、The arctic dinosaur fossils were found alongside fossils of plants known for their ability to withstand extremely cold temperatures.
D、The number of fossils found together indicates herds of dinosaurs so large that they would need to migrate to find a continual food supply.
E、Experts on prehistoric climate conditions believe that winter temperatures in the prehistoric northern arctic were not significantly different from what they are today.
答案
D
解析
读题以后不难发现本题的结论是以史前时代北极地区的气温与今天的相比无明显差别以及化石被科学家们在北极发现的恐龙生前就一直栖息在北极为前提.选项(D)通过找他因,削弱了本题结论的前提,因此(D)是正确答案;(E)对结论构成支持;(A)、(B)和(C)均为无关选项。
转载请注明原文地址:https://tihaiku.com/zcyy/3973173.html
相关试题推荐
Becausedinosaurswerereptiles,scientistsonceassumedthat,likeallreptiles
Agroupofscientistsstudyingcalciummetabolisminlaboratoryratsdiscovered
Onlycomputerscientistsunderstandthearchitectureofpersonalcomputers,and
Becauseyoungchildrendonotorganizetheirattentionorperceptionssystematic
Becausenaturalgasiscomposedmostlyofmethane,asimplehydrocarbon,vehicle
MostLargecompaniesprefercustomizedcomputersoftwarebecauseitcanbemolde
Becausetheenemy’snewshipisthequietestanditisthereforethemostelusiv
SchooldesegregationhasworkedwellinBuffalo,NewYork,inpartbecauseparen
TheRorschzchtestisgainingnewrespectasadiagnostictoolbecauseittakes
Ahugeflyingreptilethatdiedoutwiththedinosaurssome65millionyearsago
随机试题
Oneofthedrivingforcesoftoday’sglobalizationis______.[br]Theglobalc
Yourideas,_______,seemunusualtome.A、likeherB、likehersC、similartoher
管理的核心是()。A.避免事故 B.消除隐患 C.提升品质 D.处理各种
新生儿每日热量的需求约为A.100~130kcal/kg B.90~100kc
中国高铁正以速度最快、成本最低、运营里程最长等优势成为“中国制造”的新名片。20
在胜任特征模型中,( )是针对某个胜任特征,左侧注明该胜任特征的内涵,右侧则写
下列选项中,与“蛇打七寸”这一成语的哲学寓意一致的是:A.画饼充饥 B.画龙点
下列各项中,属于在确定是否能够利用内部审计的工作以实现审计目的时应当评价的事项的
王某出资设立了甲一人有限责任公司(以下简称“甲公司”)。甲公司的下列事项中,符合
某发电厂采用三回110kV架空出线,且全线均有避雷线。11OkV配电装置采用双母
最新回复
(
0
)