下列哪种无创检查方法可以显示血流方向：

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SQL Error: select id,body,options from ***_enewstiku where sourceid='24995' and id < 2128805 and id<>'2128805' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='24995' and id > 2128805 and id<>'2128805' order by id asc limit 5