首页
登录
职称英语
Today, most countries in the world have canals. Some canals, such as the Sue
Today, most countries in the world have canals. Some canals, such as the Sue
游客
2024-09-24
8
管理
问题
Today, most countries in the world have canals. Some canals, such as the Suez or the Panama,【C1】______ships weeks of time by making their voyage a thousand miles shorter. Other canals permit boats to reach cities that are not located on the coast.【C2】______other canals drain lands where there is too much water, help or【C3】______fields where there is not enough water.
The【C4】______of a canal depends on the kind of boats going through it. The canal must be wide enough to permit two of the【C5】______boats using it to【C6】______each other easily. It must be deep enough to leave about two feet of water【C7】______the keel of the largest boat using the canal. Some canals have sloping sides, while others have sides that are nearly【C8】______. Canals that are cut through rock can have nearly vertical sides. 【C9】______, canals with earth banks may【C10】______if the angle of their sides is too steep. Some canals are lined with brick, stone, or concrete to keep the water【C11】______soaking into the mud. This also permits ships to go at【C12】______speeds, since they cannot make the banks fall in by【C13】______up the water. In small canals with mud banks, ships and barges(大平底船)must【C14】______their speed.
When the canal goes【C15】______different levels of water, the ships must be【C16】______or lowered from one level to the other. This is generally done by【C17】______of locks. If a ship wants to go up to higher water, the lower end of the lock opens to let the boat in. Then this gate closes, and the water is let into the lock chamber from the upper level. This raised the level of the water in the lock【C18】______it is the same as the upper level of water. Now the upper gates can be opened to【C19】______the ship into the higher water. Sometimes a canal contains a series of locks when the【C20】______in levels is very great. [br] 【C6】
选项
A、pass
B、encounter
C、overtake
D、confront
答案
A
解析
根据上题分析可推断,此处是说两只船相对通过都没问题,故答案为[A]pass。[B]encounter“遇到”;[C]overtake“追上,超过”;[D]confront“面对,面临”。
转载请注明原文地址:https://tihaiku.com/zcyy/3771532.html
相关试题推荐
Today,mostcountriesintheworldhavecanals.Somecanals,suchastheSue
Today,mostcountriesintheworldhavecanals.Somecanals,suchastheSue
Today,mostcountriesintheworldhavecanals.Somecanals,suchastheSue
Today,mostcountriesintheworldhavecanals.Somecanals,suchastheSue
Today,mostcountriesintheworldhavecanals.Somecanals,suchastheSue
Today,mostcountriesintheworldhavecanals.Somecanals,suchastheSue
Today,mostcountriesintheworldhavecanals.Somecanals,suchastheSue
Today,mostcountriesintheworldhavecanals.Somecanals,suchastheSue
Today,mostcountriesintheworldhavecanals.Somecanals,suchastheSue
Today,mostcountriesintheworldhavecanals.Somecanals,suchastheSue
随机试题
Smokingisconsidereddangeroustothehealth.Ourtobacco-seller,Mr.Johns
Extensivenewstudiessuggestthatdieworldhasmadeextraordinaryprogress
Ican’t_____withracialprejudiceofanyform.A、putonB、putupC、putdownD、p
图为一淋巴管瘤患儿,关于此病的说法错误的是() A.好发于舌、唇、
筛检试验的漏诊率是指A.实际无病,根据筛检试验被确定为有病的百分比 B.实际无
患者,女,23岁。被人发现时呈昏迷状态。查体:神志不清,两侧瞳孔呈针尖样大小,呼
高中音乐课以()为主。A.歌唱教学 B.器乐教学 C.课堂教学
最常用的盐析剂是哪种饱和度的硫酸铵A.33%~50%B.10%~33%C.10%
共用题干 患者男性,67岁。胃癌根治术后,遵医嘱禁食,给予静脉输液治疗。应为患
下列关于自然人的民事权利能力和民事行为能力的表述正确的是()A、自然人的民事权利
最新回复
(
0
)