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高中化学‖必修二|烷烃的性质PPT

  • 2026-09-19 10:04:58
高中化学‖必修二|烷烃的性质PPT

🌐课件预览

🌐

🌐知识点总结

💟知识点1️⃣：烷烃的物理性质
①：相似性
②：递变性
💟知识点2️⃣：烷烃的化学性质
①：稳定性
②：热分解
③：可燃性
④：取代反应

🌐更多可编辑课件

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PPT课件 课文1.古诗三首《四时田园杂兴(其二十五)》 (四年级语文下册)

基本 文件 流程 错误 SQL 调试
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  1. CONNECT:[ UseTime:0.000580s ] mysql:host=172.18.0.4;port=3306;dbname=h_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000575s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000421s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000375s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000569s ]
  6. SELECT * FROM `set` [ RunTime:0.000283s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000561s ]
  8. SELECT * FROM `article` WHERE `id` = 465443 LIMIT 1 [ RunTime:0.000345s ]
  9. UPDATE `article` SET `lasttime` = 1790141924 WHERE `id` = 465443 [ RunTime:0.001075s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.000323s ]
  11. SELECT * FROM `article` WHERE `id` < 465443 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000409s ]
  12. SELECT * FROM `article` WHERE `id` > 465443 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000464s ]
  13. SELECT * FROM `article` WHERE `id` < 465443 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000556s ]
  14. SELECT * FROM `article` WHERE `id` < 465443 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000611s ]
  15. SELECT * FROM `article` WHERE `id` < 465443 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000555s ]
0.093019s