首页
登录
职称英语
Suppose we built a robot(机器人)to explore the planet Mars. We provide the robo
Suppose we built a robot(机器人)to explore the planet Mars. We provide the robo
游客
2023-07-16
38
管理
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】______. [br] 【B8】
选项
答案
inefficient
解析
转载请注明原文地址:https://tihaiku.com/zcyy/2841334.html
相关试题推荐
Todaypetroleumprovidesaround40%oftheworld’senergyneeds,mostlyfuel
Todaypetroleumprovidesaround40%oftheworld’senergyneeds,mostlyfuel
Ifthemanagementprovidespleasantbackgroundmusicandbeautifiesthedullset
Aftertheirparents’death,thechildrenwerewellprovided______.A、withB、forC
Astrologyisthestudyofhowthesun,themoon,planets,andstars______(与生命及世事
Newtechnologylinkstheworldasneverbefore.Ourplanetbas【S1】______.It
Newtechnologylinkstheworldasneverbefore.Ourplanetbas【S1】______.It
Newtechnologylinkstheworldasneverbefore.Ourplanetbas【S1】______.It
Newtechnologylinkstheworldasneverbefore.Ourplanetbas【S1】______.It
Newtechnologylinkstheworldasneverbefore.Ourplanetbas【S1】______.It
随机试题
HowmanypeopleusetheInternetinSouthAfrica?[originaltext](9)TheSout
WirelessChargingMayTakePlaceofWiredChargingA)Lastmonth,
建筑避震疏散场所是用作地震时受灾人员疏散的场地和建筑,以下哪项不属于建筑避震疏散
A.游离皮片移植 B.带血管蒂岛状皮瓣 C.残端修整 D.上臂交叉皮瓣
在不理解的情况下,幼儿也能熟练地背诵古诗,这是( )。A.意义记忆 B.理解
A. B. C. D.
下列关于随机变量的期望值和方差的说法中,错误的是()。A.期望值是随机变量的概
患者男,27岁,1周前因外伤前牙折断,已经做过根管治疗。检查:冠折,断面在龈上,
级配碎石或砾石细集料的塑性指数大于12时,处理措施不包括()。A.加石灰掺
某煤矿安全监察分局按照定期监察计划,对某煤矿进行全面安全检查,已检查了该煤矿安全
最新回复
(
0
)