A.CH3COOH B.CH3CH2OH C.CH3CHO D.C6H5OH
A.HCOOH B.CH3COOH C.HOOC-COOH D.HOOC-CH2-COOH
A.氫氧化鈉溶液 B.碳酸鈉溶液 C.溴水 D.金屬鈉