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
65
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
[originaltext]AdeadlyinfectiousoutbreaksweptthroughasmallcityinZa
Dishwashersandwashingmachinesdojobsthatwereoncedonebythehand.the一/by
Hisjourneywasveryslowbecausethetrainstopped______atdifferentvillages.A
预激综合征伴房颤患者,控制心室率时慎用的药物为A.硝苯地平 B.胺碘酮 C.
建筑内塑料排水管道的设置,下述()做法是错误的。A.塑料排水立管应避免设置在
在压力容器受压元件的内部,常常存在着不易发现的缺陷,需要采用无损检测的方法进行探
以下关于疱疹样口疮的说法不正确的是A.损害多限于口腔的无角化黏膜 B.好发于婴
A.涕B.泪C.唾D.汗E.涎五脏主五液,脾所主的液是
饭店的间接式营销渠道是通过中间商来实现的,选取中间商时应当坚持( )等标准。A
下列关于金融衍生品的说法中,错误的是(??)。A.金融衍生品是从标的资产派生出来
最新回复
(
0
)