类风湿关节炎最突出的临床表现 是（）。

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='28657' and id < 2338830 and id<>'2338830' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='28657' and id > 2338830 and id<>'2338830' order by id asc limit 5