彩色多普勒技术的调节方法，错误的是（     ）

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='25726' and id < 2162898 and id<>'2162898' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='25726' and id > 2162898 and id<>'2162898' order by id asc limit 5