只用一种试剂鉴别下列物质的水溶液CH3CH2OHCH3CHOHCOOHCH3COOH
CH3CH2OH CH3CHO HCOOH CH3COOH
CH3CH2OH CH3CHO HCOOH CH3COOH
CH3CH2OH CH3CHO HCOOH CH3COOH
CH3CH2OH CH3CHO HCOOH CH3COOH
CH3CH2OH CH3CHO HCOOH CH3COOH
CH3CH2OH CH3CHO HCOOH CH3COOHCH3CH2OH CH3CHO HCOOH CH3COOH32 CH3CHO HCOOH CH3COOHCH3CHO HCOOH CH3COOH3 HCOOH CH3COOHHCOOH CH3COOH CH3COOHCH3COOH3
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