首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Today, most countries in the world have canals. Some canals, such as the Suez or the Panama,【B1】ships weeks of time by making th
Today, most countries in the world have canals. Some canals, such as the Suez or the Panama,【B1】ships weeks of time by making th
admin
2009-04-23
48
问题
Today, most countries in the world have canals. Some canals, such as the Suez or the Panama,【B1】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.【B2】other canals drain lands where there is too much water, help or【B3】fields where there is not enough water.
The【B4】of a canal depends on the kind of boats going through it. The canal must be wide enough to permit two of the【B5】boats using it to【B6】each other easily. It must be deep enough to leave about two feet of water【B7】the keel of the largest boat using the canal.
Some canals have sloping sides, while others have sides that are nearly【B8】Canals that are cut through rock can have nearly vertical sides.【B9】, canals with earth banks may【B10】if the angle of their sides is too steep. Some canals are lined with brick, stone, or concrete to keep the water【B11】soaking into the mud. This also permits ships to go at【B12】speeds, since they cannot make the banks fall in by【B13】up the water. In small canals with mud banks, ships and barges(大平底船) must【B14】their speed.
When the canal goes【B15】different levels of water, the ships must be【B16】or lowered from one level to the other. This is generally done by【B17】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 up- per level. This raised the level of the water in the lock【B18】it is the same as the upper level of water. Now the upper gates can be opened to【B19】the ship into the higher water. Some-times a canal contains a series of locks when the【B20】in levels is very great.
选项
A、take
B、save
C、cost
D、waste
答案
B
解析
由句中的“by making their voyage at thousand miles shorter”可以推知,运河使航程缩短了1000英里,那么必然是“节省”了轮船的航行时间,因此选B.save。
转载请注明原文地址:https://kaotiyun.com/show/BIZK777K
0
大学英语六级
相关试题推荐
TheJobFinderprogramwasdesignedforteenagersandyoungadults.Itprovidesopportunitiesforeducationandemployment.Ita
Itisclearthatsomepeoplewhoparticipateinexercisetrainingwilldevelopinjuriestotheirbones,muscles,andjoints(关节).
Somepeoplearguethatself-plagiarism(自我剽窃)isimpossiblebydefinitionbecauseplagiarismistheftandpeoplecannotstealfrom
AnewpollshowsthatpeoplebelievethatcomputersandtheInternethavemadelifebetterforAmericans,butpeoplealsoseeso
FineArtAmericacomisanonlinemarketplacedesignedtohelpyoutransformyourdigitalimagesintoaflourishingonlinebusines
LadiesandGentlemen,WelcometoLondonInternationalLanguageCenter.WeteachEnglishforboth【T1】______andbusinesspurpo
DISCLAIMER:Thise-mailisconfidentialandshouldnotbeusedbyanyonewhoisnottheoriginalintendedrecipient(收件人).Ifyou
Havingatriparoundthecountryiscertainlygoodfortheoldcouple,butitremains______whethertheywillenjoyit.
A、Lauradoesn’tunderstandtheproposal.B、Laurawillnotaccepttheproposal.C、Laurawillaccepttheproposal.D、Laura’spropo
A、Hemighthelpthewomanmuch.B、Thewomanshouldn’tbuyausedcar.C、Hedoesn’tknowalotaboutnewcars.D、Thewomanisab
随机试题
Emmagrewupinafamilywithasailingtradition.
肺病见黑色为
1岁男孩,因发热、咳嗽、气促10天来诊,查体:体温:38.5~41.2℃之间,嗜睡,皮肤可见荨麻样皮疹,呼吸急促,鼻扇及三凹征阳性,两肺可闻及散在中细湿啰音,化验:白细胞27×109/L,中性90%。X线检查:两肺可见小片状阴影。根据病例诊断
某企业拟进行贷款,委托土地评估机构对所涉及的一宗工业用地进行评估,为委托方抵押贷款提供客观、公正的价格依据。请根据以下给定条件分析并回答下列问题:抵押价格评估提供的是抵押物在设定抵押权时的正常市场价格,评估过程中应注意哪些问题?
某基金投资政策规定,基金在股票和债券上的正常投资比例分别为60%、40%,但年初在股票和债券上的实际投资比例分别为90%、10%,股票和债券投资的实际年收益率分别为15%、4%,股票、债券基准指数的年收益率分别是:10%、6%,请问该基金的资产配置贡献为(
Publicimagereferstohowacompanyisviewedbyitscustomers,suppliersandstockholders,bythefinancialcommunity,bythe
【海权论】苏州大学2016年世界史专业基础综合真题
IEEE(美国电气电子工程师协会)给出的实时系统定义是:那些正确性不仅取决于计算的逻辑结果,也取决于产生结果所花费的时间的系统。因此,实时系统对外界的响应是否正确不仅取决于【75】正确性,而且取决于【76】正确性。
每天早上上班,她总要吻别他,说声再见,然后目送他上车。可今天,他发现她似乎心事重重,很少说话。“她肯定有不高兴的事,是我说的什么话惹她生气了?”下班时,路过三天前去过的商店,他想起那个红色玻璃的水果盘,那天因为钱带得不够没有买成。那是一个他
A、Thepresidentialelection.B、Electionrescue.C、Boycottofelection.D、Politicaltransition.C主旨大意题,应综合新闻的整体内容。新闻指出,苏丹大多数反对党这个
最新回复
(
0
)