多项选择题

A.每年净现金流量(NCF)=每年营业收入+付现成本-所得税
B.每年净现金流量(NCF)=每年营业收人付现成本+所得税
C.每年净现金流量(NCF)=每年营业收入-付现成本-所得税
D.每年净现金流量(NCF)=净利+折旧
E.每年净现金流量(NCF)=净利-折旧