首页
登录
职称英语
Samples taken from the ice of glaciers show that during the last ice age the
Samples taken from the ice of glaciers show that during the last ice age the
游客
2024-01-10
42
管理
问题
Samples taken from the ice of glaciers show that during the last ice age there was far more dust in the atmosphere than there is now. Since greater amounts of dust in the atmosphere would result in less sunlight’s reaching the Earth’s surface, it is likely that the large amount of dust then present helped maintain low global temperatures and thus prolonged the ice age.
Which of the following, if true, most seriously weaken the argument?
选项
A、Large amount of dust in the atmosphere would tend to keep heat from the Sun that reached the Earth’s surface from escaping into outer space.
B、The glacial samples show that during the period between the two most recent ice ages the level of atmospheric dust was far lower than it was during either of ice ages.
C、Volcanic eruptions in the recent past have released sufficient dust to cause detectable changes in global temperature patterns.
D、The amount of dust in the atmosphere was significantly greater in the middle of the last ice age than at the end.
E、Sunlight is the main heat source of the Earth’s surface.
答案
A
解析
灰尘有加热的作用,削弱了原文灰尘会降温的观点,故A正确。B项可以说明冰河时代比其他时代的尘土数量多,说明尘土和冰河时代可能有关系,加强了原文。C项也加强了灰尘影响冰川时代的观点。D项不需要将冰河时代的不同阶段进行区分。E项阳光是热源+尘埃可以阻挡阳光→地球变冷,加强了原文,故不选。
转载请注明原文地址:https://tihaiku.com/zcyy/3349269.html
相关试题推荐
Ifasocietyencouragesfreedomofthoughtandexpression,then,duringthetime
Sometimeduringthe1950’s,rockmusicpermanentlyoustedjazzfromthemusicsc
Housesbuiltduringthelasttenyearshavebeenfoundtocontainindoorairpol
Asmalldoseofwidelyusedtranquilizerallowspeopletolieduringliedetecto
Duringhisthreeyearsinoffice,thegovernorofastatehasfrequentlybeenac
21.DuringtheSecondWorldWar,about375,000civiliansdiedintheUnitedSta
Duringthelasthuntingseason,twiceasmanypeoplewerehitbycarswhilewalk
SamplesfromthefloorofarockshelterinPennsylvaniaweredatedbyanalyzing
Duringthelecturethespeakerusedmaptoclarifydirectionalterms,fornotev
Researchduringthepastseveraldecadesonthenatureoflanguageandtheproce
随机试题
Ourape-menforefathershadnoobviousnaturalweaponsinthestrugglefors
[originaltext]M:Excuseme,Madam.Youarenotsupposedtobehere.Thisareai
学术期刊著录参考文献的方法和形式,有顺序编码制和()两种。A.音序编排制 B.
把大学比喻为象牙塔,反映了高等学校关注社会需要、主动服务社会的价值追求。
社会评价的作用主要包括()。A:宏观微观相结合、定性定量相结合 B:促进经济
胸膜腔闭式引流,关于拔管下列叙述错误的是A.拔管24小时内重点观察患者呼吸情况及
下列选项中,符合所给图形的变化规律的是_
如图所示变截面杆中,AB段、BC段的轴力为: A.NAB=-10kN,N
2004年中等职业教育招生人数为()万人。 A.677B.752
下列哪项不是前瞻性研究的特点A.可直接计算发病率 B.多数情况下要计算人年发病
最新回复
(
0
)