AlphaGo是谷歌Deep Mind公司的一款围棋人工智能程序,继2016年3月以4:1战胜围棋世界冠军、职业九段选手李世石后,2016年末2017年初,在中国棋类网站上,2.0版本的阿尔法围棋(AlphaGo)以“大师”(Master)为注册帐号与中日韩数十位围棋高手进行快棋对决,连续60局无一败绩。其特点是摈弃了人类棋谱,只靠深度学习的方式成长起来,挑战围棋的极限,这标志着人工智能已经达到一个新的高度。()
是
是
A.AlphaGo
B.AlphaZero
C.AlphaStar
D.MuZero
Some adults require little sleep; others need eight to ten hours in every twenty-four. Infants sleep sixteen to eighteen hours daily, the amount gradually going less as they grow older. Young students may need twelve hours; university students may need ten. A worker with a physically demanding job may also need ten, whereas an executive working under pressure may manage on six to eight. Many famous people are repute to have required little sleep. Napoleon Bonaparte, Thomas Edison, and Charles Darwin apparently averaged only four to six hours a night.
(77) Whatever your individual need, you can be sure that by the age of thirty you will have slept for a total of more than twelve years. By that age you will also have developed a sleep routine; a favorite hour, a favorite bed, a favorite posture (姿势), and a formula (程式) you need to follow in order to rest comfortably.
(78)Investigators have tried to find out how long a person can go without sleep. Several people have reached more than 115 hours nearly five days. Whatever the limit, it is absolute. Animals kept awake for from five to eight days have died of exhaustion. The limit for human beings is probably about a week.
The writer implies that ______.
A.sleep is important for good mental and physical health
B.a light sleep is as restful as a deep sleep
C.memory is improved during sleep
D.sleep is relatively unimportant for human beings