A.800-1000℃ B.1000-1200℃ C.1200-1400℃ D.1400-1600℃
A.氣煤、肥煤、焦煤、瘦煤 B.焦煤、瘦煤、肥煤、氣煤 C.瘦煤、焦煤、肥煤、氣煤 D.焦煤、瘦煤、氣煤、肥煤
A.2-3% B.3-4% C.4-5% D.5-7%