B
Everybodydreams.Somepeoplethinkdreamscantellusaboutthefuture.
Otherpeoplethinkdreamstellusaboutourselves.It'slikeour61istalkingtous.
Whyaredreams62strangeandhardtounderstand?Somepeoplethinkourbrainuses63totalktous.
Whenwefly,swim,orfalldowninourdreams,ithasa64meaning.
Lotsofdoctorshelppeople65theirdreams.Theyfindthatdreamstellusaboutour66andfears.
Thesedays,manyscientists67thatdreamsareveryimportant.Duringtheday,
wehavemany68,andourbrainreceivesalotofinformation.
Whenwedream,ourbrain69informationthatisnotimportant,andputsthemostimportantinformationintoour70.
Aswelearnmoreaboutthebrain,wemayfindanswerstoourquestionsaboutdreams.
61.__________
A.body
B.spirit
C.brain
D.heart
第1题:
以下哪个A={a, b, c}上的关系构成 A 上的函数?()
A.R={(a, b), (a, c), (b, b), (b, a)}
B.R={(a, b), (b, b)}
C.R={(a, b), (b, b), (c, c)}
D.R={(a, b), (b, b), (b, c)}
第2题:
1、以下哪个A={a, b, c}上的关系构成 A 上的函数?()
A.R={(a, b), (a, c), (b, b), (b, a)}
B.R={(a, b), (b, b)}
C.R={(a, b), (b, b), (c, c)}
D.R={(a, b), (b, b), (b, c)}
第3题:
设a,b,c各不相同,下列等式中不成立的有()。
A.{{a,b},c,Ф}={{a,b},c}
B.{ a,b,a,c}={a,b,c}
C.{{a,b},a,b}={a,b,{a},{b}}
D.{{a,b},{b,Ф}}={{Ф,b},{b,a}}
第4题:
下列复合语句中,不能实现两数交换的是
A.{ b = a * b; a = b / a; b = b / a; }
B.{ t=a; a=b; b=t; }
C.{ a = a + b; b = a – b; a = a – b; }
D.{ a=b; b=a; }
第5题:
6、下列复合语句中,不能实现两数交换的是
A.{ a=b; b=a; }
B.{ b = a * b; a = b / a; b = b / a; }
C.{ t=a; a=b; b=t; }
D.{ a = a + b; b = a – b; a = a – b; }
第6题:
下列复合语句中,实现两数交换的是
A.{ a=b; b=a; }
B.{ a = a + b; b = a – b; a = a – b; }
C.{ t=a; a=b; b=t; }
D.{ b = a * b; a = b / a; b = b / a; }