函数 的零点个数为（  ）

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='17277' and id < 1456721 and id<>'1456721' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='17277' and id > 1456721 and id<>'1456721' order by id asc limit 5