A—之间包含几个半音？（ ）

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SQL Error: select id,body,options from ***_enewstiku where sourceid='31703' and id < 2537946 and id<>'2537946' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='31703' and id > 2537946 and id<>'2537946' order by id asc limit 5