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Na (1) CHaCH-OH CHrCH- oNa Al (2)CH,CH-OH CH-CH OLAL CH 冷浓H2SO4 (3)CH3 CH-OH CHCH=CHCH3CH - OH CH3 (1) Na CH3CH - ONa CH3 CH3CH - OH CH3 (2) Al CH3CH O- Al CH3 2 CH3CH - OH CH3 (3) 冷浓H2SO4 CH3CH=CH2
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