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
30
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
G
解析
转载请注明原文地址:https://jikaoti.com/ti/M57RFFFM
0
考研英语一
相关试题推荐
Writeanessaybasedonthefollowingchart.Inyourwriting,youshould1)interpretthechart,and2)giveyourcomments.You
Musicproducesprofoundandlastingchangesinthebrain.Schoolsshouldaddmusicclasses,notcutthem.Nearly20yearsago,a
Anewstudyfoundthatinner-citykidslivinginneighborhoodswithmoregreenspacegainedabout13%lessweightoveratwo-yea
UnderstandingwhatdistinguishespeoplewhobattlewithAlzheimer’sastheyagefromthosewhosementalacutenessremainsstrong
Althoughwefeeldissatisfiedwiththeelectionresults,wehavetobecomereconciled______thedecisionmadebyourfellowcou
Iamnot______withmyroommatebutIhavetosharetheroomwithher,becauseIhavenowhereelsetolive.
France’s______ofnucleartestingintheSouthPacificlastmonthtriggeredpoliticaldebatesandmassdemonstrations.
Youaregoingtoreadatextabouthowtokeepyourjob,followedbyalistofimportantexamples.Choosethebestexamplesfrom
Generallyspeaking,aBritishiswidelyregardedasaquiet,shyandconservativepersonwhois(1)_____onlyamongthosewithw
Title:CompetitionandCooperationYourcompositionshouldbe-basedontheOutlinesbelow:1)Thephenomenonofcompetit
随机试题
血管壁的一般结构分为()
绞窄性肠梗阻,体温39.8℃,寒战,压90/65mmHg,临床诊断为
痰浊阻痹心脉引起胸痛的特点多为( )瘀血内阻心脉引起胸痛的特点多为( )
非螺旋胸部CT检查无法确诊的疾病是
乙醇为润湿剂,醇的浓度要视原辅料的性质而定,一般为( )。
经当地主管部门批准后,某综合楼工程项目的施工由建设单位自行组织施工公开招标,招标工作主要内容确定如下:(1)成立招标工作小组;(2)发布招标公告;(3)编制招标文件;(4)编制标底;(5)发放招标文件;(6)组织现场踏勘和招标答疑;(7)投标
Themenwhoracethecarsaregenerallysmall,withatight,nervouslook.Theyrangefromtheearly20stothemiddle40s,and
作为整体,中国在世界上举足轻重;但作为个人,不少中国人还觉得自己一无所有。国家之强和个人之弱使一些人心理失衡,觉得自己活得还是像在半殖民地时代受人家欺负的受害者。正因如此,我们更需要对自己生存的状态有理性的认识,克服狭隘的“受害者情结”。否则,崛起的中国将
案例:有研究显示,一般人在进行40%VO2max运动时,动静脉氧差为12%,而进行剧烈运动时可以增加到14%,经过耐力训练后,动静脉氧差可以增大到15.5%甚至更高。问题:分析产生该现象的原因及意义。
下列叙述中错误的是()。
最新回复
(
0
)