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
32
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
(1)Oneofourmostfirmlyentrenchedideasofmasculinityisthatarealma
Ithinkalotabouttimeandnotjustbecauseit’sthenameofthenewsorga
WhichofthefollowingdetailsisINCORRECT?[br][originaltext]ThefirstE
Forthispart,youareallowed30minutestowritealetterinabout120wordst
[originaltext]Thedoghasoftenbeenanunselfishfriendtoman.Itisalwaysg
强心苷强烈酸水解的条件是A.3%~5%盐酸长时间加热 B.3%~5%盐酸长时间
外包风险管理的工作主要有( )。A.尽职调查 B.外包服务承诺 C.分包风
患者,女,64岁,胸闷憋气,兼伴短暂刺痛反复发作5年,近一周因生气而诱发加重。刻
通过复制指数的表现,选取特定的指数成分股作为投资对象属于主动型基金。( )
下列部件属于发电机定子部分的是()。A.励磁绕组 B.中心环 C.端盖 D
最新回复
(
0
)