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��公开课安全下课《溶质质量分数》课件被同事追着要!!

  • 2026-04-03 09:56:25
��公开课安全下课《溶质质量分数》课件被同事追着要!!

课件导读

本期更新课件为九下化学第九单元课题3《溶质质量分数》第2课时，课件共22页，含有配套的教学设计。

教学重难点：

1.掌握溶质的质量分数与化学方程式的综合计算

2.溶质的质量分数与化学方程式的综合计算

01

课件咨询

02

视频预览 

03

图片预览 

本课件完整共有22页，上方视频可预览完整课件

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保险课件2026十五五规划下家庭财富规划分红保险挪储篇产说会

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  1. CONNECT:[ UseTime:0.000487s ] mysql:host=127.0.0.1;port=3306;dbname=a_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000713s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.025831s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.004823s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000507s ]
  6. SELECT * FROM `set` [ RunTime:0.000755s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000570s ]
  8. SELECT * FROM `article` WHERE `id` = 471315 LIMIT 1 [ RunTime:0.001104s ]
  9. UPDATE `article` SET `lasttime` = 1775507512 WHERE `id` = 471315 [ RunTime:0.030926s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.004370s ]
  11. SELECT * FROM `article` WHERE `id` < 471315 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.022147s ]
  12. SELECT * FROM `article` WHERE `id` > 471315 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.005398s ]
  13. SELECT * FROM `article` WHERE `id` < 471315 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000763s ]
  14. SELECT * FROM `article` WHERE `id` < 471315 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.006662s ]
  15. SELECT * FROM `article` WHERE `id` < 471315 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.002357s ]
0.176872s