A.擴大 B.減小 C.不變
A.5-16% B.10-25% C.10-30% D.30-60%
A.0.209/1000*熱值 B.0.26/1000*熱值-0.25 C.0.3/1000*熱值-0.26 D.0.4/1000*熱值-0.27
