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
2024-02-17
42
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] 【B3】
选项
答案
energy
解析
转载请注明原文地址:http://tihaiku.com/zcyy/3457595.html
相关试题推荐
Withthedevelopmentofscienceandtechnology,______(大多数工人都已被机器人所取代).mostof
Withthedevelopmentofscienceandtechnology,______(大多数工人都已被机器人所取代).mostofwo
Todaypetroleumprovidesaround40%oftheworld’senergyneeds,mostlyfuel
Todaypetroleumprovidesaround40%oftheworld’senergyneeds,mostlyfuel
Todaypetroleumprovidesaround40%oftheworld’senergyneeds,mostlyfuel
Aftertheirparents’death,thechildrenwerewellprovided______.A、withB、forC
Newtechnologylinkstheworldasneverbefore.Ourplanetbas【S1】______.It
Newtechnologylinkstheworldasneverbefore.Ourplanetbas【S1】______.It
Newtechnologylinkstheworldasneverbefore.Ourplanetbas【S1】______.It
Newtechnologylinkstheworldasneverbefore.Ourplanetbas【S1】______.It
随机试题
Afterabusydayofworkandplay,thebodyneedstorest.Sleepisnecessaryfo
(1)Twoyearsagothismonth,Doubledaypublishedahistoricalthrillerwith
Anybrainexerciseisbetterthanbeingatotalmentalcouchpotato.Butthe
Forsometimepastithasbeenwidelyacceptedthatbabies--andothercreatu
下列消毒剂中,不适用于医护人员手消毒的是A.0.5%聚维酮碘(碘伏)溶液 B.
鱼的脂肪含有大量的__________,可以将动脉粥样硬化斑点上的_______
关于转氨酶的临床意义,下列说法错误的是A.慢性迁延型肝炎ALT、AST轻度上升,
向脸部肌肉注射肉毒杆菌,利用其轻微麻醉作用来减轻表情纹,使皮肤看上去更年轻,已有
(2011年真题)与基坑明挖法相比,盖挖法施工最显著的优点是()。A.施工成
对具有常规现金流量,即在()内,开始时有支出而后才有收益,且方案的净现金
最新回复
(
0
)