A.大火 B.中火 C.小火 D.微火
A.0.5% B.1% C.2.5% D.5%
A.5% B.10% C.15% D.20%
A.18℃以下 B. 20~25℃ C.25~30℃ D. 30~35℃
A.8.5% B.4.5% C.11.5% D.6.5%