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TPU与农业专业化

  • 2026-05-18 06:35:08
TPU与农业专业化
摘要：本文使用中国加入WTO作为外生冲击，考察农村固定观察点的农户种植集中度变化，发现贸易政策不确定性使得农户更加专业化。
来源：Guo Dongmei, Guo Tao, Li Bing, Xie Chaoping, 2025, Trade policy uncertainty and agricultural specialization: Evidence from rural household in China, China Economic Review, Volume 94, Part A, 102506.
本文来自网友投稿或网络内容，如有侵犯您的权益请联系我们删除，联系邮箱：wyl860211@qq.com 。

饶阳县农业农村局开展豇豆质量安全专项整治工作

中国二十冶斩获3.4亿大单,聊城农业产业化升级再提速

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  1. CONNECT:[ UseTime:0.001060s ] mysql:host=127.0.0.1;port=3306;dbname=h_mffb;charset=utf8mb4
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  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.001058s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.001464s ]
  6. SELECT * FROM `set` [ RunTime:0.000542s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.001575s ]
  8. SELECT * FROM `article` WHERE `id` = 515229 LIMIT 1 [ RunTime:0.001002s ]
  9. UPDATE `article` SET `lasttime` = 1780876795 WHERE `id` = 515229 [ RunTime:0.049294s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.006380s ]
  11. SELECT * FROM `article` WHERE `id` < 515229 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.001324s ]
  12. SELECT * FROM `article` WHERE `id` > 515229 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.001200s ]
  13. SELECT * FROM `article` WHERE `id` < 515229 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.004842s ]
  14. SELECT * FROM `article` WHERE `id` < 515229 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.001980s ]
  15. SELECT * FROM `article` WHERE `id` < 515229 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.001984s ]
0.247591s