因为供电基诱导效应，使生物碱碱性增强的基团是

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30716' and id < 2474782 and id<>'2474782' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30716' and id > 2474782 and id<>'2474782' order by id asc limit 5