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
81
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
C
解析
转载请注明原文地址:https://kaotiyun.com/show/znZ4777K
0
考研英语一
相关试题推荐
Writeanessaybasedonthefollowingtable.Inyourwriting,youshould1)describethetable,and2)giveyourcomments.Yous
"Ibelieveinequalityforeveryone,exceptreportersandphotographers,"MahatmaGandhioncesaid.Journalist-haterslikehimm
Theshortergrowingseasonsexpectedwithclimatechangeoverthenext40yearswillendangerhundredsofmillionsofalreadypo
TheMaristpollfoundthatwhile65%ofpeoplewhomadearesolutionintheNewYearkepttheirpromiseforatleastpartofthe
UntilrecentlymosthistoriansspokeverycriticallyoftheIndustrialRevolution.They【B1】thatinthelongrunindustrializat
TheauthorwantstoprovewiththeexampleofIsaacNewtonthat______.Theauthorimpliesthattheresultsofscientificresea
Youaregoingtoreadatextabouthowtokeepyourjob,followedbyalistofimportantexamples.Choosethebestexamplesfrom
Generallyspeaking,aBritishiswidelyregardedasaquiet,shyandconservativepersonwhois(1)_____onlyamongthosewithw
Generallyspeaking,aBritishiswidelyregardedasaquiet,shyandconservativepersonwhois(1)_____onlyamongthosewithw
随机试题
牙病防治所张老师带助理执业医师实习组到某小学开展窝沟封闭防龋措施。在临床操作过程中,对于每个操作环节中出现容易出现的问题时,张老师都予以分析和纠正。清洁牙面过程中要注意不能用
某支气管哮喘病人,每当发作就自用沙丁胺醇(舒喘灵)喷雾吸入,护士应告诫病人,如用量过大可能会出现()。
下列关于建筑内疏散楼梯的做法,错误的有()。
股票、债券等属于()。
近年关于安乐死的争论越来越激烈,社会工作者面临的是遵守法律禁止对病人实施安乐死还是支持濒临死亡的服务对象接受安乐死的意愿之间的矛盾。在这个过程中,社会工作者面临的伦理困境是()。
自尊是()。
以下说法正确的有()。
设二次型f(x1,x2,x2)=x12+x22+x32-2x1x2-2x13+2ax2x3(a<0)通过正交变换化为标准形2y12+2y22+by32当|X|=1时,求二次型的最大值
在某台Cisco路由器OSPF配置模式下,定义参与OSPF的子网地址,下列各项中错误的配置是()。
下列控制格式输入/输出的操作符中,能够设置浮点数精度的是()。
最新回复
(
0
)