1£®CH₃CH₂Cl¨D→CH₂===CH₂

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2£®CH₃CH₂OH¨D→CH₂===CH₂

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3£®CH₃CH₂OH¨D→CH₃CHO

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4£®CH₃CH₂OHºÍCH₃COOHÉú³ÉÒÒËáÒÒõ¥

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5£®OHC—CHO¨D→HOOC—COOH

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