线性盈亏平衡分析理解正确的是（ ）。

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='27079' and id < 2244566 and id<>'2244566' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='27079' and id > 2244566 and id<>'2244566' order by id asc limit 5