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
Since about 1800, near the beginning of the industrial revolution, coal, petroleum and gas have been used at a rapidly increasin
Since about 1800, near the beginning of the industrial revolution, coal, petroleum and gas have been used at a rapidly increasin
admin
2010-10-14
32
问题
Since about 1800, near the beginning of the industrial revolution, coal, petroleum and gas have been used at a rapidly increasing rate. The supply of these【C1】______is limited and electric power is very【C2】______in many places. Some scientists believe solar energy is the only【C3】______that can meet the world’s enormous【C4】______for power. Great progress had been made harnessing the sun. Not only is the sun now used in cooking, 【C5】______it also supplies power for【C6】______things as beacon lights for ships and airplanes. It【C7】______telephone lines, portable radios, electric clocks, hearing aids, and even communication satellites. Some homes and office buildings in U. S. A. are now being【C8】______with solar energy. The three most【C9】______types of solar equipment so far are the furnace, the still(蒸馏器)and the cell. Solar furnaces heat water or air,【C10】______is then circulated through a building to make it comfortable. Solar stills are【C11】______important because they can provide【C12】______water at a relative cheap rate. Salt can easily be【C13】______from sea water with solar still. The most highly developed type of solar【C14】______equipment is the solar cell. Some cells are so【C15】______that they can turn 16% of the energy they receive from the sun【C16】______electric energy. One of the cell’s biggest advantages is【C17】______it can be made either small enough to carry【C18】______large enough to produce current that can run an automobile. Besides, it has a very long life. It is still too expensive for the【C19】______consumer but when ways are【C20】______to produce it more cheaply, we can expect its use to be widely-spread.
【C3】
选项
A、means
B、source
C、solution
D、resource
答案
B
解析
此句意思是“太阳能是惟一的一种…”,source“能源”,正合题意。resource“资源”所指的范围比较宽泛,比如常用的human resource,表示“人力资源”,此处为干扰项;means“方式,方法”;solution“解决办法”。
转载请注明原文地址:https://kaotiyun.com/show/1787777K
0
大学英语四级
相关试题推荐
A、Hehassomementaldiseases.B、Heisphysicallyhandicapped.C、Heworksathome.D、Hecan’tmoveaboutwithouthiswheelchair.
Inventchallenges.Ahundredyearsago,pioneerpsychologistWilliamJamesdeclaredthathumansuseonlya【C1】______partofthei
Accordingtoasurvey,whichwasbasedontheresponsesofover188,000students,today’straditional-agecollegefreshmenare"
Don’tgettooclosetoatiredteen;youcouldstartlosingsleepaswell.Whenoneteenagerstartssleepingless,herfriendsa
A、Hewillmakeposters.B、Hewillwriteaspeech.C、Hewillanswerquestions.D、Hewillstudychemistry.B题目问男士今晚做什么。女士说在明天午餐时为男
A、Schoolsenator.B、Schooltreasurer.C、Schoolsecretary.D、Schoolpresident.D题目问男士竞选什么职位。男士在开头就问"HowdoIconvincemembersof
A、Theplayersfoundthebaskettoohightoreach.B、Theplayershadtroublegettingtheballoutofthebasket.C、Theplayersha
Participationinhighschoolsportsisnotaconstitutionalright.Rather,itisa【C1】______,paidforbytaxpayers,opentostu
It’shotnowinAfghanistan,where35%ofthepopulationisunder-fed.Butsoonitwillbecold,andmanyofthecountry’sroads
Asummaryofthephysicalandchemicalnatureoflifemustbegin,notontheEarth,butintheSun;in【C1】______attheSun’sver
随机试题
以环境因素的形成过程及其与人类活动的关系为标准,可以把行政环境分为()
放大摄影能将细小结构显示清楚,其原因是
引起小儿下颌下间隙感染最多来源的是
尿路感染最常见的致病菌是
简述资产评估报告书制作的技术要点中,文字表达方面的技能要求?
某企业采用计划成本进行材料的日常核算。2008年12月,月初结存材料计划成本为300万元,本月收入材料计划成本为700万元;月初结存材料成本差异为超支2万元,本月收入材料成本差异为节约10万元。本月材料成本差异率为()。
关于审计报告日,以下说法中,错误的是()。
根据下列资料,回答以下问题。日利用率:飞机在一日内平均提供的生产飞行小时数。客座率:承运的旅客数量与飞机可提供的座位数之比。2015年,平均每架民航飞机月飞行时间超过300小时的月份有()个。
下列关于局域网设备的描述中,错误的是()。
What’sHot,What’sNotfor2006Thisyearmarksnotonlythe50thanniversaryofIRAbutalsothe10thyearofthe"What’sh
最新回复
(
0
)