首页
登录
职称英语
Today, most countries in the world have canals. Many countries have built ca
Today, most countries in the world have canals. Many countries have built ca
游客
2023-07-11
87
管理
问题
Today, most countries in the world have canals. Many countries have built canals near the coast, and parallel【67】the coast. Even in the twentieth century, goods can be moved more cheaply by boat than by any other【68】of transport. These waterways make it【69】for boats to travel【70】ports along the coast without being【71】to the dangers of the open. Some canals, such as the Suez and the Panama, save ships weeks of time by making their【72】a thousand miles shorter. Other canals permit boats to reach cities that are not【73】on the coast, still other canals【74】lands where there is too much water, help to【75】fields where there is not enough water, and【76】water power for factories and mills. The size of a canal【77】on the kind of boats going through it. The canal must be wide enough to permit two of the largest boats using it to【78】each other easily. It must be deep enough to leave about two feet of water【79】the keel (船的龙骨) of the largest boat using the canal. When the planet Mars was first【80】through a telescope, people saw that the round disk of the planet was crisscrossed by a【81】of strange blue-green lines. These were called "canals"【82】they looked the same as canals on earth【83】are viewed from an airplane. However, scientists are now【84】that the Martian phenomena are really not canals. The photographs【85】from space-ships have helped us to【86】the truth about the Martian "canals". [br]
选项
A、exact
B、definite
C、certain
D、decisive
答案
C
解析
本题考查上下文词义。在四个选项中,只有certain有“确信”的意思。exact和definite的主语应为事物,decisive不符合句意。
转载请注明原文地址:https://tihaiku.com/zcyy/2827710.html
相关试题推荐
[originaltext]Insomecountriescertainkindsofinsurancearecompulsory.
[originaltext]Insomecountriescertainkindsofinsurancearecompulsory.
MiddleEastcountries______theiroilrevenuesintootherformsofwealth,such
TheAsiancountriesalongthecoastofthePacificall______againsttheUSnew
Inmanycountries,suchasFrance,Greece,andJapan,itisoftenmorediffi
Inmanycountries,suchasFrance,Greece,andJapan,itisoftenmorediffi
Inmanycountries,suchasFrance,Greece,andJapan,itisoftenmorediffi
Inmanycountries,suchasFrance,Greece,andJapan,itisoftenmorediffi
Inmanycountries,suchasFrance,Greece,andJapan,itisoftenmorediffi
Inmanycountries,suchasFrance,Greece,andJapan,itisoftenmorediffi
随机试题
Adogcaresdeeply,whichwayyourbody
设X,Y为随机变量,若E(XY)=E(X)E(Y),则().A.X,Y独立 B
根据《营业性演出管理条例实施细则》规定,申请举办含有内地演员和香港特别行政区、澳
乌梅丸适用于()A.寒热错杂,气机阻滞,症见心下痞满、呕吐下利者 B.胃
确诊伤寒最可靠的依据是来自以下哪一项A.发热、中毒症状、白细胞减少 B.血培养
黄老师发现越来越多的同学不喜欢上他的课,甚至逃课,如果是你,你该怎么办?
有利湿退黄,活血功效的中药是A.虎杖B.茵陈C.茯苓D.薏苡仁E.木通
运行中的变压器应有齐全的设备(),且清晰可识别A.出厂铭牌B.设备编号
某水库除险加固工程包括主坝、副坝的加固及防汛公路的改建等内容,主、副坝均为土石坝
知识点:心音减弱p2减弱可见于 A.肺心病 B.动脉导管未闭 C.室间隔
最新回复
(
0
)