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高中化学必修二‖氮及其化合物PPT|第2课时

  • 2026-09-18 04:14:37
高中化学必修二‖氮及其化合物PPT|第2课时

❇️课件预览

❇️知识点总结

✅知识点1️⃣：氨

①：物理性质

②：氨的溶解性

③：氨的化学性质

✅知识点2️⃣：铵盐的性质与检验

①：化学性质

③：铵盐的检验

✅知识点3️⃣：氨气的实验室制备

❇️可编辑课件

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一例被领导夸赞的护士长年终工作总计PPT案例分享(附源文件)

基本 文件 流程 错误 SQL 调试
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  1. CONNECT:[ UseTime:0.000449s ] mysql:host=172.18.0.4;port=3306;dbname=h_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000573s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000310s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000404s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000560s ]
  6. SELECT * FROM `set` [ RunTime:0.000310s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000703s ]
  8. SELECT * FROM `article` WHERE `id` = 469022 LIMIT 1 [ RunTime:0.000395s ]
  9. UPDATE `article` SET `lasttime` = 1790041783 WHERE `id` = 469022 [ RunTime:0.001343s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.000319s ]
  11. SELECT * FROM `article` WHERE `id` < 469022 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000370s ]
  12. SELECT * FROM `article` WHERE `id` > 469022 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000413s ]
  13. SELECT * FROM `article` WHERE `id` < 469022 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000534s ]
  14. SELECT * FROM `article` WHERE `id` < 469022 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000755s ]
  15. SELECT * FROM `article` WHERE `id` < 469022 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000743s ]
0.096449s