首页
登录
职称英语
In the passage, the author is primarily interested in______ [br] It can be infer
In the passage, the author is primarily interested in______ [br] It can be infer
游客
2024-01-13
52
管理
问题
In the passage, the author is primarily interested in______ [br] It can be inferred from the passage that the isotope record taken from ocean sediments would be less useful to researchers if which of the following were true?
选项
A、It indicated that lighter isotopes of oxygen predominated at certain times.
B、It had far more gaps in its sequence than the record taken from rocks on land.
C、It indicated that climate shifts did not occur every 100,000 years.
D、It indicated that the ratios of oxygen 16 and oxygen 18 in ocean water were not consistent with those found in fresh water.
E、It stretched back for only a million years.
答案
B
解析
B is the best answer. The author states that one advantage of obtaining an isotopic record from ocean sediment is that the ocean’s isotopic record is “a more continuous record than that taken from rocks on land”(lines 43-45). Because a continuous record can indicate more precisely when shifts in the Earth’s climate have occurred, the ocean’s isotopic record would be less useful if it had more gaps in it than the record taken from rocks. A describes a circumstance that is in fact true, since oxygen 16 is the lighter isotope and, according to the passage, “Almost all the oxygen in water is oxygen 16”(line 17). This fact clearly has not compromised the usefulness of the ocean’s isotopic record as an indicator of climatic shifts. Likewise, E would not diminish its usefulness, since isotopic records showing “fluctuations in global ice volume over the past several hundred thousands years” have been sufficient to determine a meaningful pattern (lines 49-53). If C were shown to be true, Milankovitch’s theory would be weakened, but this would not diminish the value of the isotopic record. If D were true, researchers would need to accommodate the inconsistency described in evaluating the isotopic record, but, again, this would not compromise the usefulness of the record itself.
转载请注明原文地址:https://tihaiku.com/zcyy/3359684.html
相关试题推荐
Theauthorusedthesoutherndialecttogivethestorysomelocal______.A、color
Ajudgemustbe_________whenweighingevidence.A、interestedB、disinterestedC、se
WhenIwasalittlegirl,Iwasinterestedineverythingaroundme.Whenmy
WhenIwasalittlegirl,Iwasinterestedineverythingaroundme.Whenmy
Thepassageasawholecanbestbecharacterizedaswhichofthefollowing?[br]
Thepassageasawholecanbestbecharacterizedaswhichofthefollowing?[br]
Thepassageasawholecanbestbecharacterizedaswhichofthefollowing?[br]
Whichofthefollowingmostaccuratelystatesthemainideaofthepassage?[br]
Whichofthefollowingmostaccuratelystatesthemainideaofthepassage?[br]
Whichofthefollowingmostaccuratelystatesthemainideaofthepassage?[br]
随机试题
[originaltext]M:Sarah!Goodtomeetyouagain!Andwelcomeonboard!W:Thanks
[originaltext][13]PeopleinPolandtaketheirpleasureseriously.Theylik
Thatparticularlyhumorlessbossordourneighbormaynothaveapersonality
下列选项中不属于影响企业支付能力的因素是()。A.实物劳动生产率 B.销货劳
通风空调设备及部件制作安装中不包含的分项工程是()。A.净化通风管道
男性生殖腺是()A.睾丸 B.前列腺 C.附睾 D.精囊腺
按表扬的表现形式和程度不同一般可分为两种方式:{}和奖励。
冰片作为引药上行、开窍醒脑之良药,其主要药理学基础为A.兴奋中枢B.促进其他药物
教师和家长进行沟通是一门学问,也是一门艺术。针对不同特点的家长,应对的方式也应有
鉴别糖尿病高血糖和应激性高血糖,以及评价糖尿病控制程度的是哪一项A.空腹血糖
最新回复
(
0
)