交易成本大小与谈判的复杂程度（ ）。

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='31820' and id < 2543348 and id<>'2543348' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='31820' and id > 2543348 and id<>'2543348' order by id asc limit 5