患儿女，2岁半。落日眼，耳聋，牙齿深褐色，流涎，对外界反应迟钝，伴手足徐动。其最可能的诊断为

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SQL Error: select id,body,options from ***_enewstiku where sourceid='28571' and id < 2331958 and id<>'2331958' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='28571' and id > 2331958 and id<>'2331958' order by id asc limit 5