A.5 B.6 C.8 D.9
A.風(fēng)險 B.不確定 C.特殊 D.計劃
A.(0.5,0.3,0.2,0.1) B.(0.2,0.4,0.1,0.2) C.(-0.3,0.6,0.4,0.3) D.(0.6,0.2,0.2,0)