在实际经济活动中，投资债券的收益可以表现为（）。
A.利息收入
B.资本利得
C.再投资收益
D.债务人违约金
参考答案：A, B, C
情境领导理论也叫（）。
A.特质理论
B.权变理论
C.生命周期理论
D.领导风格理论
What happened to Jamaica’s sugar factories in the 1990s
A．They witnessed unsuccessful reforms.
B．They went bankrupt due to crop failure.
C．They suffered from inefficient production.
D．They failed due to a shortage of labor supply.
