为预防病毒性肝炎，幼儿园对餐具进行消毒时必须煮沸（ ）。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='27776' and id < 2283475 and id<>'2283475' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='27776' and id > 2283475 and id<>'2283475' order by id asc limit 5