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CH3CH2OH CH3CH2CH3 CH3CH3 CH2===CH－CH3
CH3CH2CH3 CH3CH2CH2OH （CH3）2CHCH3 CH3CH2CHO
CH3CH2Cl CH3CH2OH CH3CH3 CH3CH（CH3）2
CH3 O CH3 CH3 CH2OH HCOOH CH3COOCH3
CH3CH2CH3 CH3CH2CH2OH (CH3)2CHCH3 CH3CH2CHO
CH3CH2CH3 CH3COCH2CH3 CH3CH2OH CH3OCH3
的红外光谱和核磁共振氢谱如下图所示，下列说法中错误的是 
A.由红光外谱可知，该有机物中至少有三种不同的化学键 由核磁共振氢谱可知，该有机物分子中有三种不同化学环境的氢原子 仅由其核磁共振氢谱无法得知其分子中的氢原子总数 若A.的化学式为C.2H6O，则其结构简式为CH3—O—CH3
CH3CH2CH2CH3 (CH3)2CHCH3 CH3CH2CH2OH CH3CH2COOH
CH3CH2CH3 CH3CH2CH2OH CH3CH2CH2CH3 CH3CH2CHO
CH3CH2CH2CH3 （CH3）2CHCH3 CH3CH2CH2OH CH3CH2COOH
CH3CH2CH2CH3 (CH3)2CHCH3 CH3CH2CH2OH CH3CH2COOH 
CH3CH2OH CH3CH2CH3 CH2=CH-CH3 CH3CH3
CH3CH2CH2CH3 (CH3)2CHCH3 CH3CH2CH2OH CH3CH2COOH
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