日常生活中所说的“高分低能”，是指（ ）掌握得不好。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30610' and id < 2469376 and id<>'2469376' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30610' and id > 2469376 and id<>'2469376' order by id asc limit 5