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【数学试卷】天一高一10月联考

  • 2026-10-28 16:51:38
【数学试卷】天一高一10月联考
第18题可以说一说“必要性探路”这个思想，其中找到S的一个必要条件，可以缩小范围，后面不等式存在小于等于0，可以不用对对称轴进行分类讨论。
第14题，可以转化为单变量（参考答案是单变量），也可以对已知条件因式分解去做。
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  1. CONNECT:[ UseTime:0.000768s ] mysql:host=172.18.0.4;port=3306;dbname=www_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000997s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000465s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000341s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000549s ]
  6. SELECT * FROM `set` [ RunTime:0.000255s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000661s ]
  8. SELECT * FROM `article` WHERE `id` = 527800 LIMIT 1 [ RunTime:0.000344s ]
  9. UPDATE `article` SET `lasttime` = 1793181352 WHERE `id` = 527800 [ RunTime:0.001659s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 65 LIMIT 1 [ RunTime:0.000335s ]
  11. SELECT * FROM `article` WHERE `id` < 527800 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000423s ]
  12. SELECT * FROM `article` WHERE `id` > 527800 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000364s ]
  13. SELECT * FROM `article` WHERE `id` < 527800 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000439s ]
  14. SELECT * FROM `article` WHERE `id` < 527800 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000771s ]
  15. SELECT * FROM `article` WHERE `id` < 527800 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000625s ]
0.092590s