A.40% B.50% C.60% D.67%
A.有效經(jīng)過年數(shù)等于實際經(jīng)過年數(shù) B.有效經(jīng)過年數(shù)短于實際經(jīng)過年數(shù) C.有效經(jīng)過年數(shù)長于實際經(jīng)過年數(shù) D.有效經(jīng)過年數(shù)可能長于或短于實際經(jīng)過年數(shù)
A.更新重置成本 B.復(fù)原重置成本 C.完全成本 D.重新購建價格