腕骨中段骨折，患肢腕不能背伸，各指掌指关节不 能主动伸直，其原因是（ ）

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SQL Error: select id,body,options from ***_enewstiku where sourceid='25465' and id < 2149681 and id<>'2149681' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='25465' and id > 2149681 and id<>'2149681' order by id asc limit 5