A.20% B.10% C.5% D.8%
A.4 B.3 C.2 D.1
A.投資回報(bào)率=項(xiàng)目凈利潤/項(xiàng)目成本×100% B.投資回報(bào)率=項(xiàng)目毛利潤/項(xiàng)目成本×100% C.投資回報(bào)率=項(xiàng)目凈利潤/項(xiàng)目成本 D.投資回報(bào)率=項(xiàng)目毛利潤/項(xiàng)目成本