in期临床试验的目的是

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30784' and id < 2479034 and id<>'2479034' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30784' and id > 2479034 and id<>'2479034' order by id asc limit 5