属于第二信使的分子是

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30144' and id < 2439199 and id<>'2439199' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30144' and id > 2439199 and id<>'2439199' order by id asc limit 5