单项选择题
A.资本利得 B.基本收益 C.资本升值 D.现金流量
A.0.618,1.618,2.618 B.0.382,0.618,0.809 C.0.618,1.618,4.236 D.0.382,0.809,4.236
A.0<|r|≤0.3 B.0.3<|r|≤0.5 C.0.5<|r|≤0.8 D.0.8<|r|≤1