下列（）不属于按产生原因划分的风险。

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='27154' and id < 2250010 and id<>'2250010' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='27154' and id > 2250010 and id<>'2250010' order by id asc limit 5