当用劳动所得收入购买消费品所获效用和通过闲暇所获效用的比值达到最大时,消费者的效用达到最大。( )
查看答案
轨道交通对信号系统的要求有哪些?
A. 高安全性
B. 通过能力
C. 强抗干扰能力
D. 高可靠性
Which of the following is not a component of internal control?
A.Monitoring of controls
B.Information system
C.Comply with legal requirements
D.Risk assessment
Which of the following is NOT an element of the fraud triangle?
A.Motive
B.Ethics
C.Rationalization
D.Opportunity