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
外语
Life near the shore everywhere is affected by the tides, which come and go twice each day in a cycle of about twelve-and-a-half
Life near the shore everywhere is affected by the tides, which come and go twice each day in a cycle of about twelve-and-a-half
admin
2014-04-23
36
问题
Life near the shore everywhere is affected by the tides, which come and go twice each day in a cycle of about twelve-and-a-half hours—just different enough from the daily cycle of the sun so that there can be no regular relationship between the shore being alternately wet and dry and alternately light and dark. The extent of the tides varies greatly, from as little as one foot in inland seas like the Mediterranean, to fifty feet or so in the Bay of Fundy in Nova Scotia. In some parts of the world, one of the two daily tides rises higher and falls lower than the other; and tides at the time of new moon and full moon are generally greater than at other times. The extent of the intertidal zone thus varies from day to day as well as from place to place.
The kinds of organisms living in the region between the tidal limits depend very much on whether the shore is rocky, sandy, or muddy. Rocky shores have the most obviously rich faunas (某地区所有的动物),because of the firm anchorage for both animals and plants, and because of the small pools left by the retreating seas. Sandy shores, especially when exposed to surf (as they usually are), have the fewest kinds of animals.
The time span between tides______.
选项
A、is shorter in inland seas
B、varies as much as the extent of the tides
C、and the extent of tides depend upon each other
D、is a more constant phenomenon than the extent of the tides
答案
D
解析
文中第一段说:“……潮汐按12小时半的循环规律一天来去两次,这样就与太阳的每日一循环形成了足够的时间差,所以海岸干与湿的交替与天空明与暗的转换也就不可能形成有规律的联系。潮汐规模的变化很大……”由此我们可知,两次潮汐的间隔期比潮汐规模更有恒值性。
转载请注明原文地址:https://jikaoti.com/ti/bqIYFFFM
0
在职攻硕英语联考
相关试题推荐
Opinionpollsarenowbeginningtoshowthatwhoeveristoblameandwhateverhappensfromnowon,highunemploymentisprobably
Opinionpollsarenowbeginningtoshowthatwhoeveristoblameandwhateverhappensfromnowon,highunemploymentisprobably
ThecreationofUNwas,perhaps,themost______achievementofthe20thcentury.
Pronouncingalanguageisaskill.Everynormalpersonisexpertintheskillofpronouncinghisownlanguage,butfewpeoplear
TheMITSloanSchoolofManagementstronglybelievesthatitspurposeistogivestudentsthetoolstheywillneedtobeeffecti
Ifsustainablecompetitiveadvantagedependsonworkforceskills,Americanfirmshaveaproblem.【R6】________Skillacquisition
A、Thecarisnotbigenough.B、Thecarisnotgoodenough.C、Heonlypromisedtobuyasmallcar.D、Hecan’taffordtobuythec
MykidstellmethatIam"so20thcentury",whichtroublesme.Apersonlikestofeelthatheis"withit",asweusedtosayi
Wehavecometorealizetheneedtoleaveenoughenvironmentalspaceforouroffspring.
A、JohnFitzgeraldKennedy.B、JacquelineKennedy.C、DwightEisenhower.D、EdwardDurrellStone.C文中说:建造肯尼迪表演艺术中心的想法始于1958年,艾森豪威尔总统
随机试题
可出现强迫蹲位的疾病是()
建设项目工程总承包方在合同收尾时的工作包括()。
根据《实施工程建设强制性标准监督规定》,下列关于对实施工程建设强制性标准进行监督的表述,错误的是()。
刘先生居住在某省会城市,今年36岁,税前月收入4000己,年终奖13万元。刘太太和他同岁,税前月收入4000元他们除了参加社保外没有购买任何商业保险。二人对风险比较厌恶。刘先生家庭金融资产约300000,日常生活消费支出6000元/月。目前他们居住的住房已
下列哪种情况下造成的学生伤害事故,学校承担责任?()
Kellie:Youhaven’tbeenaroundmuchlately,haveyou?Marie:______.Kellie:Oh?Wherewereyou?Marie:PalmSprings.I’vegota
媒体上最近充斥着关于某名人的八卦新闻,这使该名人陷入一种尴尬的境地:如果她不出面做澄清和反驳,那些谣传就会被大众信以为真;如果她出面做澄清和反驳,这反而会引起更多人的关注,使那些八卦新闻传播得更快更广。这也许就是当名人不得不付出的代价吧。如果题干中的陈述为
有如下程序:#includeusingnamespacestd;classTestClass1{public:TestClass1(){cout
A.AsHSBCDataProcessing(Shanghai)Limitedcontinuestogrow,weinvitepeoplewhoexcelinachallenginganddynamicwork
A、Mikecan’tpasstheexam.B、Mikedoesn’tneedtostudyatall.C、MikeshouldgetsomefreshairinthemorningD、Havingagood
最新回复
(
0
)