A.質(zhì)堅(jiān)體輕,易折斷 B.質(zhì)堅(jiān)體輕,不易折斷 C.質(zhì)堅(jiān)體重,易折斷 D.質(zhì)堅(jiān)硬,不易折斷 E.質(zhì)堅(jiān)而韌,斷面纖維性
A.質(zhì)堅(jiān)實(shí),不透明,不易折斷 B.質(zhì)堅(jiān)脆,半透明,易折斷 C.質(zhì)堅(jiān)實(shí),半透明,不易折斷 D.質(zhì)堅(jiān)脆,不透明,易折斷 E.質(zhì)堅(jiān)硬,透明,不易折斷
A.表面黃白色或淡黃色,具細(xì)縱紋 B.質(zhì)硬而脆,易受潮變軟 C.氣微香,味甘微苦 D.斷面黃白色,半透明,中柱細(xì)小 E.紡錘形,兩端漸細(xì),略彎曲