当总需求大于总供给时，会出现（ ）等现象。[2008年5月三级真题]

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SQL Error: select id,body,options from ***_enewstiku where sourceid='25260' and id < 2138419 and id<>'2138419' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='25260' and id > 2138419 and id<>'2138419' order by id asc limit 5