什么是净现金流?
A、净现金流是某一时间点上流入的现金流与流出的现金流的差额;
B、净现金流是某一时间点上流入的现金流与流出的现金流的和;
C、净现金流是某一时间点上流入的现金流;
D、净现金流是某一时间点上流出的现金流;