首页
登录
职称英语
Canals are watercourses constructed to improve and extend natural waterways
Canals are watercourses constructed to improve and extend natural waterways
游客
2023-11-22
25
管理
问题
Canals are watercourses constructed to improve and extend natural waterways. They are generally built to facilitate transportation, but from the beginning they have been used for many additional purposes including draining swamps, irrigating land for cultivation, and promoting economic development.
Canals are often classified by the size of vessel they can accommodate. Some small local canals, which are able to float only 100 to 300 ton boats or small rafts of timber, may be only 3 feet deep. Major barge canals generally range from 6 to 9 feet in depth, and some are as much as 10 or 12 feet deep. These canals can carry 1,350 to 2,000 ton craft. Ship canals are 25 feet or more deep and are capable of accommodating large vessels in the seagoing class.
Canals may also be classified as either water level or lock canals. Water level canals do not vary in height along their courses. The best known of these is the Suez Canal, which is at sea level. Lock canals, which include most modem waterways, contain locks, or special devices for raising and lowering boats along their courses by changing the depth of the water. Each lock is a stretch of water enclosed by gates at each end. After a boat enters the lock, water is let or drained out until it reaches approximately the same level as the water ahead. [br] According to the author, in terms of the respect he inspired, Arthur is comparable to______.
选项
A、a modern hero
B、a tribe leader
C、a modem scientist
D、a blacksmith
答案
C
解析
该题的提问部分意为:“就他所引起的崇拜而言,亚瑟可以与..相比。”第二段提到,在石器时代末期,掌握了青铜技术的人被人顶礼膜拜,被视为统治精神与物质世界的主(a lord over spiritual and material things)。在那个时代的人眼里 (in eyes of the people of the lron Age),这种人简直就是先知(seer),他同今天的发明家、化学家一样,为他的人民创造新的武器。因此,像今天我们崇拜或敬畏科学家一样,那个遥远的时代的人将掌握了青铜技术的人视作他
转载请注明原文地址:https://tihaiku.com/zcyy/3210709.html
相关试题推荐
Whatdoesthepassagemainlydiscuss?[br][originaltext]Canalsarewaterc
Whatdoesthepassagemainlydiscuss?[br][originaltext]Canalsarewaterc
Whatdoesthepassagemainlydiscuss?[originaltext]Canalsarewatercourses
Whousedtolivetogetherinanextendedfamily?[br][originaltext]Thefa
Whousedtolivetogetherinanextendedfamily?[br][originaltext]Thefa
Whousedtolivetogetherinanextendedfamily?[br][originaltext]Thefa
Whousedtolivetogetherinanextendedfamily?[originaltext]Thefamilyi
Canalsarewatercoursesconstructedtoimproveandextendnaturalwaterways
Canalsarewatercoursesconstructedtoimproveandextendnaturalwaterways
Canalsarewatercoursesconstructedtoimproveandextendnaturalwaterways
随机试题
VeraWanghasbecomeasignificantfigureintheAmericanfashionindustryi
[originaltext]M:Ihearyouhaverentanewhouse.Sowhat’sitlikehavingar
[originaltext]NewYork,USAThousandsof"OccupyWallStreet"demonstratorsfan
下列关于平均数的说法,正确的有()。
以下描述不是软件配置管理功能的是______。A.配置标识 B.版本控制 C
对钢筋混凝土大偏心受压构件破坏特征的描述,下列中哪一个是正确的?A.远离轴向力一
患者,女,36岁。诊断为风湿热8年。门诊坚持每月肌注长效青霉素120万U。近日因
2018年我国人口从年龄构成来看,16至59周岁的劳动年龄人口为89729万人,
共用题干 某市政设施工程全部由政府投资兴建。该项目为该省建设规划的重点项目之一
取得工程设计专项资质的企业,可以承接()。A.本专项相应等级的专项工程设计业
最新回复
(
0
)