二级公共营养师证书真伪难辨，如何避免陷入培训？

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  二级公共营养师证书真伪难辨，如何避免陷入培训？

  MySQL Query : select id,url,title from `php_xuexiao` where `id`= LIMIT 20
  MySQL Error : You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'LIMIT 20' at line 1
  MySQL Errno : 1064
  Message : You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'LIMIT 20' at line 1
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