首页
登录
职称英语
There are many reasons for tidal action; thus, tides are very complicated ph
There are many reasons for tidal action; thus, tides are very complicated ph
游客
2024-07-08
43
管理
问题
There are many reasons for tidal action; thus, tides are very complicated phenomenon involving many factors, all of which must be considered to predict tidal action in any one place at any given time. The alternate rise and fall of the surface of the seas and the oceans is mainly caused by the attractive force of the moon. When the attraction is great, the tide is high; conversely, when the attraction is minimal, the tide is low. Between the high tide and the low tide is a period of a little over six hours, being called during its rise a flood tide, and during its fall an ebb(退潮) tide.
The sun also exerts its effect on the tide, being a little less than half as much as the moon, although its mass is so much greater. When the moon and the sun are horizontal, the highest tide occurs and when they are vertical the lowest tide takes place.
The wind also plays an important part in the modification of the normal rise and fall of the tides. Thus these factors affect each other, either detracting(转移) or adding to the attractive forces to add or subtract from the magnitude of the tide. One thing is certain: the tides move inexorably(不可阻挡) on, rising twice a day, shifting a little in time each day, and coutinually posing the problem of how to correctly predict their highs and lows.
选项
A、the attraction of the sun and the moon
B、the sun, the moon and the wind
C、the changing tides
D、the factors affecting the tides
答案
D
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3667713.html
相关试题推荐
A—AssembleJ—MembershipB—CustomersatisfactionK—Placeord
A—AssembleJ—MembershipB—CustomersatisfactionK—Placeord
A—AssembleJ—MembershipB—CustomersatisfactionK—Placeord
Ifyou’vebeenthinkingaboutgivingupyourjob,herearetworeasonsyous
Ifyou’vebeenthinkingaboutgivingupyourjob,herearetworeasonsyous
Designingtheresumeforthebesteyeattractionisnotanunchangeablematte
A—LetterofCreditB—discountingC—internationaltransactions
A—LetterofCreditB—discountingC—internationaltransactions
A—LetterofCreditB—discountingC—internationaltransactions
A—LetterofCreditB—discountingC—internationaltransactions
随机试题
Thefundamentaldistinctionbetweenaconstitutionandordinarylawsissimi
Therelationshipbetweenprofessionalsportsclubsandtheirplayersisperh
FirstAidforAnimalBitesRisksofBitesThemostc
AdvertisementsareemployedNOTto______.[originaltext]Advertisingisaw
1.现在许多人在为人处事方面只关心自己的利益而很少去估计他人2.互相理解对于说话的双方都非常重要3.为此,我们应该……
针对一个实际电力系统,PQ分解法计算速度一定比牛拉法快()
房地产经纪人在带领客户看房前应设计好看房路线,其目的是( )。A.展示房源的品
政府采购货物招标项目中,对与项目有利害关系的评审专家,有权要求其回避的主体有()
按利润贡献度对客户分类,可分为()。A.富裕客户 B.大众富裕客户 C.中等
一住店客人未付房钱即想离开旅馆去车站。旅馆服务员揪住他不让走,并打报警电话。客人
最新回复
(
0
)