已知f(x)= ，则f[f(1)]的值为

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='16568' and id < 1442514 and id<>'1442514' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='16568' and id > 1442514 and id<>'1442514' order by id asc limit 5