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睡不着,做几道模拟题的压轴题提升下困意

  • 2026-09-26 03:22:19
睡不着,做几道模拟题的压轴题提升下困意

睡不着，做几道模拟题的压轴题提升下困意

1-双变量含三角的恒成立问题与证明题
2-几何概型及组合数恒等式证明
3-双曲线中的面积、夹角问题，这里需要很强的注意力发现斜率之和为常数，不然硬算就会出现非对称韦达

广东,1小时前,
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  1. CONNECT:[ UseTime:0.000606s ] mysql:host=172.18.0.4;port=3306;dbname=www_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000858s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000445s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000345s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000602s ]
  6. SELECT * FROM `set` [ RunTime:0.000278s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000684s ]
  8. SELECT * FROM `article` WHERE `id` = 516491 LIMIT 1 [ RunTime:0.000333s ]
  9. UPDATE `article` SET `lasttime` = 1790373489 WHERE `id` = 516491 [ RunTime:0.001381s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 65 LIMIT 1 [ RunTime:0.000325s ]
  11. SELECT * FROM `article` WHERE `id` < 516491 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000516s ]
  12. SELECT * FROM `article` WHERE `id` > 516491 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000345s ]
  13. SELECT * FROM `article` WHERE `id` < 516491 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000845s ]
  14. SELECT * FROM `article` WHERE `id` < 516491 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000689s ]
  15. SELECT * FROM `article` WHERE `id` < 516491 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000616s ]
0.084725s