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
Suppose we built a robot(机器人)to explore the planet Mars. We provide the robot with seeing detectors to keep it away from【B1】____
Suppose we built a robot(机器人)to explore the planet Mars. We provide the robot with seeing detectors to keep it away from【B1】____
admin
2013-02-24
21
问题
Suppose we built a robot(机器人)to explore the planet Mars. We provide the robot with seeing detectors to keep it away from【B1】______. It is powered entirely by the sun. Should we program the robot to be【B2】______active at all times? No. The robot would be using up【B3】______at a time when it was not【B4】______any. So we would probably program it to【B5】______its activity at night and to wake up at dawn the next morning.
According to the evolutionary(进化的)theory of sleep, evolution equipped us with a regular【B6】______of sleeping and waking for the same reason. The theory does not deny(否认)that sleep【B7】______some important restorative functions. It merely says that evolution has programmed us to perform those functions at a time when activity would be【B8】______and possibly dangerous. However, sleep protects us only from the sort of trouble we might walk into;【B9】______So we sleep well when we are in familiar, safe place, but we sleep lightly, if at all, when we fear that bears will nose into the tent.
The evolutionary theory accounts well for differences in sleep among creatures.【B10】______Surely cats do not need five times as much repair and restoration as horses do. But cats can afford to have long periods of inactivity because they spend little time eating and are unlikely to be attacked while they sleep. Horses must spend almost all their waking hours eating, because what they eat is very low in energy value.【B11】______.
【B2】
选项
答案
equally
解析
转载请注明原文地址:https://kaotiyun.com/show/cCu7777K
0
大学英语四级
相关试题推荐
A、Forceourselvestorememberthings.B、Practiceandexerciseconsciously.C、Neverstoplearning.D、Tryhardtorememberthings.
AmongthecriticismsoftheObamaadministration’sbankrescueproposalisthatthegovernmentwillprovideupto$1trillionin
Managersneedtofindwaystogivetheiremployeesalifttoimprovetheirmorale(士气).That’swhereteam-buildingexercisesand
A、Waitandtaketheclassnextyear.B、Becomeamusician.C、Givehispresentationwithoutaplan.D、Discussthepresentationwit
Environmentalasceticismhascreatedavogueforupgradinglight-bulbsandtweakingthermostats(恒温器).Butaccordingtoanewpi
A、CarsMagazine.B、Reader’sDigest.C、Neitherofthem.D、Bothofthem.C
Thethousandsofpeopleforcedtoabandontheirhomesinrecentweekstofloodwatersarevictimsnotjustofnaturebutofhuman
Thehumanbrainisthemostcomplexstructureintheuniverse.Itcontains【B1】______100billionnervecells,eachofwhichhast
Thehumanbrainisthemostcomplexstructureintheuniverse.Itcontains【B1】______100billionnervecells,eachofwhichhast
Thehumanbrainisthemostcomplexstructureintheuniverse.Itcontains【B1】______100billionnervecells,eachofwhichhast
随机试题
关于特发性门脉高压,以下哪项说明不正确
某外贸公司在缴纳了100万元的税款后,采取虚报出口的手段,骗得税务机关退税180万元,后被查获。对该公司应如何处理?()。
某施工单位承接了二级公路桥隧相连项目,其中桥梁桥跨布置为(65+120+65)m,③号桥台紧邻隧道进口洞门。隧道全长910m净宽12m,净高5m.单洞双向两车道,最大埋深100m,进、出口50m范围内埋深均小于20m(属浅埋隧道)。桥跨布置与
由于甲、乙双方在合同中未约定履行的顺序,甲方拒绝了乙方要求其先支付一部分预付款的要求,则甲方的行为属于()。
对波特的五力模型说法不正确的是()。
“九寨水清鱼读月,黄龙山静鸟谈天”联语运用()手法,生动逼真地再现了九寨沟、黄龙山景色的清、静、美,读后非常耐人寻味。
就本质而言,《人民文学》质量高低,______,与传播媒介所处位置并没有必然的因果关联。从某种意义上讲,销量也不能必然反映文学的真正价值,今天的畅销作者中,有多少经得起历史的检验呢?有媒体统计发现,2010年,王蒙、贾平凹、周国平、麦家四人的总版税,比不过
在南京大屠杀中保护了许多难民的德国人是()。
一台交换机总带宽为16Gbit/s,具有48个10/100Mbit/s电端口和若干个1000Mbit/s光端口,所有端口都工作在全双工状态,那么该交换机光端口数最多为()。
【B1】【B7】
最新回复
(
0
)