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九上二次函数重难点题型专项训练

  • 2026-11-08 23:10:50

九上二次函数重难点题型专项训练

九年级上册「二次函数的图像与性质」共139题，留意开口、对称轴、顶点，做错后按考点回看。
#二次函数 #二次函数图像 #九年级数学 #九年级上册数学 #初中数学 #中考数学 #期中复习 #家长必读 #家长陪学 #得升错题练

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基本 文件 流程 错误 SQL 调试
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  1. CONNECT:[ UseTime:0.000779s ] mysql:host=172.18.0.4;port=3306;dbname=www_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001028s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000552s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000354s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000664s ]
  6. SELECT * FROM `set` [ RunTime:0.000310s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000587s ]
  8. SELECT * FROM `article` WHERE `id` = 541613 LIMIT 1 [ RunTime:0.000318s ]
  9. UPDATE `article` SET `lasttime` = 1794155361 WHERE `id` = 541613 [ RunTime:0.001286s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 65 LIMIT 1 [ RunTime:0.000301s ]
  11. SELECT * FROM `article` WHERE `id` < 541613 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000455s ]
  12. SELECT * FROM `article` WHERE `id` > 541613 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000454s ]
  13. SELECT * FROM `article` WHERE `id` < 541613 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000534s ]
  14. SELECT * FROM `article` WHERE `id` < 541613 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000480s ]
  15. SELECT * FROM `article` WHERE `id` < 541613 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000504s ]
0.083978s