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
Computers may one day turn night into day—with good old, natural sunlight. Giant computer-controlled mirrors, thousands of f
Computers may one day turn night into day—with good old, natural sunlight. Giant computer-controlled mirrors, thousands of f
admin
2005-11-28
61
问题
Computers may one day turn night into day—with good old, natural sunlight.
Giant computer-controlled mirrors, thousands of feet across,【C1】______one day orbit the earth, 【C2】______sunlight onto a darkened United States.
Two scientists【C3】______NASA(National Aeronautics and Space Administration)say that 16 of these mirrors, 【C4】______ about a half mile wide, could【C5】______their reflected light at one area on earth【C6】______was about 200 miles【C7】______300 miles. That much light would equal【C8】______56 moons.
The mirror would be【C9】______high that they could【C10】______the sun’s light【C11】______the sun was shining on the【C12】______ side of the Earth. The mirrors would【C13】______thousands of miles high【C14】______the same speed as the Earth spins. That way, the mirrors【C15】______ always be over the same spot.
The aluminum-coated, plastic mirrors could be【C16】______ up and packed into a【C17】_____shuttle, according to the scientists, John Allen and John Canady. 【C18】______released a few hundred miles in【C19】______, the mirrors, powered【C20】______a solar-powered engine, could make the rest of the trip into space on their own.
Allen and Canady say that the computer-controlled mirrors could also be made to tilt slowly, so the reflected sunlight would sweep slowly along the surface of the Earth. For example, as night fell, the mirrors could be tilted to light up Boston. Later on as darkness crept slowly westward, Chicago, for example, then San Francisco could be lit up. The reflected sunlight would allow these cities to conserve electricity. And in emergencies, such as power-failures or disasters, the mirrors could light up the affected areas.
【C5】
选项
答案
aim
解析
转载请注明原文地址:https://kaotiyun.com/show/SLIO777K
0
考博英语
相关试题推荐
AAcompanydoesnotfunctioninavacuum,butratheraspartofasociety.Thatsocietyconsistsofthepeoplewhoworkforit
•ReadthearticlebelowaboutAmericanconsumers’borrowingstyles,andthequestionsontheoppositepage.•Foreachquestion
Readthearticlebelowaboutmanagingacrosscultures.ChoosethebestwordorphrasetofilleachgapfromA,B,CorDon
•Lookatthenotesbelow.•Someinformationismissing.•Youwillhearamanagementconsultantgivingabusinessstudieslecture
Whenwillthemeetingtakeplace?Whatwillhelpthecompanytoincreaseproduction?
Whichchartshowslastweek’sproductionfigures?
LEARNKEYSKILLSFORYOURCOMPUTER-ONYOURCOMPUTER?Computersarenowascommonlyusedinbusinessasthetelephone.Th
TipsforRunning/AttendingBusinessConferenceABringnecessarymaterialssuchasanotepadandapenBC
Ahundredyearsagoitwasassumedandscientifically"proved"byeconomiststhatthelawsofsocietymakeitnecessarytohave
Researchshouldcontinueoncontrollednuclearfusion,butnoenergyprogramshouldbepremisedonitsexistenceuntilithaspr
随机试题
革兰染色过程中,第二步的目的是
已知数字信号A和数字信号B的波形如图所示,则数字信号的波形为()。
沥青路面的施工中,沥青混凝土半幅施工不能采用热接缝时,应当采用措施有()。
根据税收征收管理法律制度的规定,纳税人不办理税务登记,由税务机关责令限期改正,逾期仍不改正的,税务机关应对其采取的措施是()。
某单位2003年某物资每单位物资的价格为100元,单位物资产生的年持有成本为其价值的25%,单次订货费用为100元/次,通过预测,预计2004年该类物资的总需求量为1800单位。若2004年单位物资价格、持有成本和单次订货费维持在2003年水平,请计算出2
下图所示国家为世界重要红茶生产国。据考察发现,M地第一季度生产的茶叶质量最好。读图完成下列问题。导致M地第一季度茶叶质量最好的主要因素是()。
单位以非法占有为目的,利用签订、履行借款合同诈骗银行或其他金融机构贷款的,应对()
Theinventionofbothlabor-savingtoolsandtoolsofintelligenceisrarelyaccidental.Instead,itisusuallytheproductofh
HowtoGetPreservedasaFossil【71】Unfortunatelythechancesofanyanimalbecomeafossilarenotverygreat,and【72】the
Rabiesisallordinarilyinfectiousdiseaseofthecentralnervoussystem.Itiscausedbyavirusand,【C1】______arule,spread
最新回复
(
0
)