首页
登录
职称英语
There are many reasons for tidal action; thus, tides are very complicated phe
There are many reasons for tidal action; thus, tides are very complicated phe
游客
2024-06-29
19
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/3654778.html
相关试题推荐
Theaimofthisreportistoassessthemainreasonsforstaffcomplaintsabout
Complicatedasseemstheproblem,itcanbesolvedinonlytenminuteswithane
Youmayhavecomplete(free)______ofactionindealingwiththismatter.freed
Thepolicementookactionandrushedintothebuilding______(direct)theyhear
A--LetterofCreditB--discountingC--internationaltransactionsD--bene
______thereactionsofpeoplewiththisdrug,scientistshavelearnedmoreabou
Itwassimplyforsomespecialreasons______Ididn’ttellyouthetruthattha
IwastoldthatDisneyWorldisoneofFlorida’smajor(tour)______attractions
Acommon______tojokesistolaugh.A、responseB、reactionC、actionD、respondB本
Inadditiontoeconomicconsiderations,thereareotherreasons______peoplewo
随机试题
Startingaconversationisaseasyforsomepeopleaseatingandbreathing.
Namedafteranex-GovernorofNewSouthWales,SydneyistheState’scapital
Americancitiesare【C1】______otherdriesaroundtheworld.Ineverycount
Theoldwomanwouldhavebeendrowned_______apasser-bydraggedheroutofthew
明龙骨吊顶分项工程检验批质量检验方法包括()。A.尺量检查 B.检查产品合格
关于健康管理互动平台的管理服务系统架构不正确的是A.使用者操作界面 B.健康档
双眼睑下垂多为( )。A.脾气虚衰 B.外伤所致 C.先天不足,脾肾亏虚
治疗量的阿托品能引起的作用是A.腺体分泌增加 B.胃肠平滑肌松弛 C.瞳孔散
220kV及以下套管运行中的油中溶解气体含量乙炔达到()μL/L应注意。(A)0
甲市政工程公司计划向乙银行贷款600万元用于购置机械设备,乙银行要求甲市政工程公
最新回复
(
0
)