彩色多普勒血流成像技术的敢样框应如何 选择应用（  ）。

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='27184' and id < 2252644 and id<>'2252644' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='27184' and id > 2252644 and id<>'2252644' order by id asc limit 5