价值工程在准备阶段需进行的设计程序是（ ）。

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='26417' and id < 2207364 and id<>'2207364' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='26417' and id > 2207364 and id<>'2207364' order by id asc limit 5