A.187.5 B.195 C.191.25 D.172.5
A.不影響當(dāng)年利潤B.當(dāng)年利潤增加7.2萬元C.當(dāng)年利潤增加15萬元D.當(dāng)年利潤增加30萬元
A.182 B.177.75 C.186 D.174.55