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已收录的包裹（10个）

上面是输入字符，下面是格式化后的字符

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1. C6H3OHCH2​

    

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2. C6H3OHCH2+NH2O​

    

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3. CH-CH2​

    

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4. CH-CH3-CH2​

    

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5. CH-CL-CH2​

    

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6. CH=CH​

    

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7. CH2-CH=C-CH2​

    

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8. CH2-CH=CH-CH2​

    

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9. CH2-CH2​

    

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10. CH2-CHCL​