下列地貌是由河流侵蚀作用形成的是

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='18861' and id < 1625111 and id<>'1625111' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='18861' and id > 1625111 and id<>'1625111' order by id asc limit 5