【单选题】Economists make assumptions to
A.
provide issues for political discussion.
B.
make a complex world easier to understand.
C.
make it easier to teach economic concepts and analysis.
D.
advancing their political agendas.
【多选题】在判定问题的近似中,对于近似解需要区分的是()。
【判断题】股票是一种证券持有人对公司的财产有直接支配处理权的证券。
【单选题】电流互感器的准确度D级是用于接( )的。 A. 测量仪表 B. 指示仪表 C. 差动保护 D. 微机保护
【判断题】若现值和利率相同,计息期为一期,则复利终值大于单利终值。( )
【单选题】Economists make assumptions
A.
to diminish the chance of wrong answers.
B.
to make the world easier to understand.
C.
because all scientists make assumptions.
D.
to make certain that all necessary variables are included.
【单选题】若现值和利率相同,计息期为一期,则复利终值和单利终值( )
【单选题】Economists make assumptions to
A.
provide issues for political discussion.
B.
make a complex world easier to understand.
C.
make it easier to teach economic concepts and analysis.
D.
create policy alternatives that are incomplete or subject to criticism.
【单选题】Economists make assumptions to
A.
mimic the methodologies employed by other scientists.
B.
minimize the number of experiments that yield no useful data.
C.
minimize the likelihood that some aspect of the problem at hand is being overlooked.
D.
focus their thinking on the essence of the problem at hand.
【简答题】股票是一种证券持有人对公司的财产有直接支配处理权的证券。 ( )