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
What is talked about in the beginning of the passage?
What is talked about in the beginning of the passage?
admin
2014-04-25
50
问题
What is talked about in the beginning of the passage?
Although European countries have been spending more money on wind generating electrical facilities than we have been here in the U.S., there are combinations of factors which make the outlook quite promising for domestic wind farms. Many of the projects which have been attempted in Europe have not been commercially successful because they have been centered around massive projects—some as tall as twenty-story buildings with propellers a hundred meters across—that they have developed structural and other technical problems. Here in America, by contrast, we typically rely on smaller propeller units distributed across large land area, such as the five thousand acre installation near Palm Springs. Although these small installations are technically less efficient, in practical terms they have turned out to be much more reliable. The other factor which has helped to make the domestic wind power projects more successful has been the introduction of computers to regulate the interactions between the propellers and the electrical generators. Because of the reduced cost of computerized controllers and the greater efficiency they bring, the cost of wind generated power has dropped from 30 cents per kilowatt hour to 7-9 cents—less than the cost of conventional coal or oil burning power plants.
选项
A、Greater winds.
B、Slightly larger windmills.
C、Computerized controllers of less cost.
D、Stronger competition.
答案
C
解析
细节题。预读题目时可推测跟题目相关的部分应该会谈到具体数字的下降,而文章最后提到了某些具体数值,谈及通过降低计算机控制部分的成本来减少最终价格,故选C。
转载请注明原文地址:https://kaotiyun.com/show/TcUK777K
0
专业英语四级
相关试题推荐
Accordingtotheman,whichoneisNOTthepossiblefactorofsuccess?
Scientificresearchresultscannowbequickly______tofactoryproduction.
InZurich,aleadingCantonintheSwissConfederation,ithasbeenproposedtoteachoneforeignlanguage—English—inprimarysc
Whenshopkeeperswanttolurecustomersintobuyingaparticularproduct,theytypicallyofferitatadiscount.Accordingtoa
Accordingtothespeaker,yogashouldNOTbedescribedas______
What’sthepossiblerelationshipbetweenthetwospeakers?
Whatisthispassagemainlyabout?
TheAmericansgotothecinemamainlyto______.
What’sthemainpointthespeakermakes?
DiningCustomsintheUSAAmericans,likemanypeopleelsewhereintheworld,/liketoinvitefriendstotheirhomesforan
随机试题
简述环氧粉末回收装置的组成。
企业为客户提供信息咨询,接受电话订货,开设技术培训班,这些活动都是()
下列有关文学常识的表述,正确的一项是()
肺性脑病不宜吸入高浓度氧的主要原因是()
男性,40岁,反复上腹疼痛5年余,平卧时加重,弯腰可减轻,查体:上腹部轻压痛,X线腹部摄片左上腹部钙化,可能的诊断是
防爆电气设备选用原则是什么?
上海证券交易所固定收益平台的交易,自()起开始试行。
下列描述能够体现中国古代教育特点的是()
在表设计器的“字段”选项卡中,字段有效性的设置项中不包括
Chemistryisthestudyofthebehaviorandcompositionofmatter.Allfoodsaremadeupofchemicalsubstancewhichundergoesch
最新回复
(
0
)