关于不同人体组织体液声衰减高低差别，$ 正确的是（     ）

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SQL Error: select id,body,options from ***_enewstiku where sourceid='25738' and id < 2163372 and id<>'2163372' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='25738' and id > 2163372 and id<>'2163372' order by id asc limit 5