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HOCH2COOCH2CH3 CH3CH(OH)CH2COOH HOCH2CH2CH2COOH CH3CH2CH(OH)COOH
CH3CH2OCH3 CH3CH(OH)CH3
CH3COOH CH3CH2CHO
CH3CH2COOH CH3COOCH3 HCOOCH2CH3 CH3COCH2OH
-CH2OH>-CH2NH2>-CH2C(CH3)3 -CH2NH2>-CH2OH>-CH2C(CH3)3 -CH2C(CH3)3>-CH2NH2>-CH2OH -CH2NH2>-CH2C(CH3)3>-CH2OH
(CH3)3CCH2OH (CH3CH2)2CHOH CH3(CH2)3CH(CH3)OH CH3CH2C.(CH3)2OH
CH3CH2OCH3 CH3CH(OH)CH3 CH3CH2COOH CH3CH2CHO
HOCH2COOCH2CH3 CH3CH(OH)CH2COOH HOCH2CH2CH2COOH CH3CH2CH(0H)COOH
只有①②③④ 除③外均可 只有①②⑤⑦ 除⑤外均可
HO(CH2)2CHO HO(CH2)2COOH HOOCCOOH (CH3)3CCOOH
CH3CH2OCH3 CH3CH.(OH)CH3 CH3CH2COOH CH3CH2CHO
只有①③⑥ 只有①③④ 只有①③④⑤ ①②③④⑤⑥
用质谱仪测定如图①,核磁共振氢谱示意图如图②,则A.的结构简式可能为( ) A. CH3CH2OH CH3CHO HCOOH CH3CH2CH2COOH
CH3CH3 CH2=CH2 CH3CH2OH CH3COOH