教师讲课有间隔和停顿，符合感知规律中的( )

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SQL Error: select id,body,options from ***_enewstiku where sourceid='29335' and id < 2388332 and id<>'2388332' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='29335' and id > 2388332 and id<>'2388332' order by id asc limit 5