现金流入与现金流出之差称为( )。
A．现金波动值
B．现金后期值
C．净现金流量
D．现金流量差值
参考答案：C
Alan is _____ than I am.[ ]
A. funny and outgoing
B. more funnier and outgoing
C. funnier and more outgoing
D. more funnier and outgoing
