A.煙質(zhì)有所降低 B.煙質(zhì)不變 C.煙質(zhì)得以提高 D.控制煙質(zhì)
A.16%一18% B.11.5%-12.5% C.1l%:一13% D.17%
A.松散、柔軟,增加韌性 B.配葉 C.加濕 D.加溫