儿童的正常听力一般为（ )分贝。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='31369' and id < 2515930 and id<>'2515930' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='31369' and id > 2515930 and id<>'2515930' order by id asc limit 5