认为商业银行只宜发放短期贷款的资产管理理论是( )。
A．转换理论
B．预期收入理论
C．真实票据理论
D．超货币供给理论
参考答案：C
__ Why do you suggest buying a new machine?
__ Because the old one has been damaged __________.
A．in use
B．beyond control
C．within reach
D．beyond repair
继电器与接触器的区别是什么？
