班主任工作的首要任务是（ ）。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='32166' and id < 2564625 and id<>'2564625' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='32166' and id > 2564625 and id<>'2564625' order by id asc limit 5