由于人们对效用的认识不同,就形成了两种效用理论,即()。A.总效用论 B.基数效用 发布时间:2017-06-26 21:30 │ 来源:www.tikuol.com 题型:多项选择题 问题: 由于人们对效用的认识不同,就形成了两种效用理论,即()。A.总效用论 B.基数效用论 C.序数效用论 D.边际效用论 E.平均效用论
题型:多项选择题 YOUTH CLUB For under 17s and over 12s!7.00 pm-11.00 pm89 Cambridge StreetOnly $10 per weekTel: 44963157.QQ:49638257. DANCING-MUSIC-GAME No Smoking!小题1:When can you go to the club?A.10am, Friday.B.7pm, Monday.C.12pm, Sunday.D.10pm, Saturday.小题2:Who can join the club?A.Li Ping, a10-year- old boy.B.Amy, a15-year- old girl.C.George, a smoker.D.Fanny, a University professor 教授小题3:To join the club, how much should you pay every month?A.10 dollars.B.20 dollars.C.30 dollars.D.40 dollars.小题4:What can you do in this club?A.Playing chess.B.Playing baseball.C.Dancing.D.Learning English.小题5:What is the telephone number of the club?A.44963157.B.46875273.C.49638527.D.46938257. 查看答案
题型:多项选择题 假设某动物种群中,最初一对等位基因B、b的频率B=0.75,b=0.25,若环境的选择作用使B基因的频率不断降低,若干代后B、b的基因频率B=0.25,b=0.75,则在整个进化过程中,群体中基因型为Bb的频率变化规律是()A.不断增加 B.不断降低 C.先增加后降低 D.基本不变 查看答案
题型:多项选择题 非对称数字用户线ADSL是采用 (40) 调制通过双绞线向用户提供宽带业务、交互式数据业务和普通电话服务的接入技术,其上行速率为640 kb/s~1 Mb/s,下行速率可达 1 Mb/s~ (41) ,有效传输距离为3~5 km。ADSL接入互联网的两种方式是 (42) 。Cable Modem又叫线缆调制解调器,它可以连接用户家中的PC机和 (43) 网络。Cable Modem的最高上行速率可达 (44) ,下行速率则更高,彻底解决了由声音/图像传输引起的阻塞。43()A.ATMB.PSTNC.HFCD.FRN 查看答案