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
考研
In the following text, some sentences have been removed. For Questions 41-45, choose the most suitable one from the list (A、B、C、
In the following text, some sentences have been removed. For Questions 41-45, choose the most suitable one from the list (A、B、C、
admin
2010-09-06
68
问题
In the following text, some sentences have been removed. For Questions 41-45, choose the most suitable one from the list (A、B、C、D、E、F、G……) to fit into each of the numbered blank. There are several extra choices, which do not fit in any of the gaps. (10 points)
(41)______. Nevertheless, some of these small changes are important. There are three basic processes that cause a change in oceanic salinity. One of these is the subtraction of water from the ocean by means of evaporation—conversion of liquid water to water vapor in this manner, the salinity is increased, since the salts stay behind. If this is carried to the extreme, of course, white crystals of salt would be left behind.
The opposite of evaporation is precipitation, such as rain, by which water is added to the ocean. Here the ocean is being diluted so that the salinity is decreased. This may occur in areas of high rainfall or in coastal regions where rivers flow into the ocean. (42)______.
Normally, in tropical regions where the sun is very strong, the ocean salinity is somewhat higher than it is in other parts of the world where there is not as much evaporation. (43)______.
A third process by which salinity may be altered is associated with the formation and melting of sea ice. When seawater is frozen, the dissolved materials are left behind. In this manner, seawater directly beneath freshly formed sea ice has a higher salinity than it did before the ice appeared. (44)______.
In the Weddell Sea, off Antarctic, the densest water in the oceans is formed as a result of this freezing process, which increases the salinity of cold water. (45)______.
A. The water in the oceans only leaves by evaporating (and the freezing of polar ice), but the salt remains dissolved in the ocean—it does not evaporate.
B. Thus salinity may be increased by the subtraction of water by evaporation, or decreased by the addition of fresh water by precipitation or runoff.
C. If the salinity of ocean waters is analyzed, it is found to vary only slightly from place to place.
D. Of course, when this ice melts, it will tend to decrease the salinity of the surrounding water.
E. This heavy water sinks and is found in the deeper, portions of the oceans of the world.
F. The salinity (salt content) of ocean water varies. One cubic foot of average sea water contains 2.2 pounds of salt.
G. Similarly, in coastal regions where rivers dilute the sea, salinity is somewhat lower than in other oceanic areas.
选项
答案
B
解析
转载请注明原文地址:https://kaotiyun.com/show/76Z4777K
0
考研英语一
相关试题推荐
Theshortergrowingseasonsexpectedwithclimatechangeoverthenext40yearswillendangerhundredsofmillionsofalreadypo
Americanpresidentsseemtoagebeforeoureyes.Butthecommonbeliefthathigh-officestressgraysourleadersfasterthan【C1】
Everyday,employeesmakedecisionsaboutwhethertoactlikegiversorliketakers.Whentheyactlikegivers,theycontribute
Becauseofitsintimacy,radioisusuallymorethanjustamedium;itis______.
Theauthorbelievesthat______.Thehotspottheorymay’proveusefulinexplaining______.
SenatorRobertDolecriticizedTimeWarnerfor______.Infaceoftherecentattacksonthecompany,thechairman______.
Intheeyesofvisitorsfromtheoutsideworld______.Thetraditionofhospitalitytostrangers______.
Youaregoingtoreadatextabouthowtokeepyourjob,followedbyalistofimportantexamples.Choosethebestexamplesfrom
Title:CompetitionandCooperationYourcompositionshouldbe-basedontheOutlinesbelow:1)Thephenomenonofcompetit
随机试题
A、Schoolswereshutduringthetrial.B、Thepressureofpublictransportwasheavy.C、Parentscouldsendtheirchildrentoschoo
“一切皆流,无物常驻。”的观点属于()。
对医疗机构的执业要求规定,医疗机构必须将以下项目悬挂于明显处,除了
与出让、租赁和作价出资(入股)方式相比,经国家授权经营在国有建设用地使用权权利取得时()。
某企业生产乙种产品,分三道工序连续加工,原材料于生产前一次投料,成本计算有关资料如下:4月份完工产品800件,月末在产品210件,各工序在产品及有关定额见下表。有关计划小时费用率为:燃料及动力每小时0.50元,直接人工费用每小时0.6元,制造费用每小
“不可能所有深圳人都很有钱。”以下哪项断定的涵义,与上述断定最为接近?()
向阳电器公司销售部门对今年微波炉的销售量进行统计,发现今年前两个季度销售微波炉25万台,只是去年全国销售量的30%。向阳电器公司有关部门由此得出结论,今年微波炉的销售量肯定会低于去年。以下哪项如果为真,最能削弱上述结论?
Plantsstillgiveusouroxygen.Ifeveryplant(51),you’lldietoo.Withoutplants,youcan’tbreathe.Butyoualsoneedenerg
Theeffectofthebabyboomontheschoolshelpedtomakepossibleashiftinthinkingabouttheroleofpubliceducationinthe
Animalsdonoteatmorethantheirbodiesneed.Theyseemtohavethe(1)______toeatwhentheyarehungry.Ithasbeendemonst
最新回复
(
0
)