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1.3 运动的快慢 课件

  • 2026-11-03 07:59:10
1.3 运动的快慢 课件
速度这节内容新课比较简单，后续习题课难度会比较大。在后续习题课中，建议培养学生多方面能力，如：根据图像分析问题（路程-时间图像、速度时间图像，横纵坐标物理意义、横纵截距物理意义、斜率、面积……），多过程运动的平均速度问题，超声波测速问题，车子鸣笛问题等等。
下期选取部分强化题目更新。
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八上实用高效课件:第15课《背影》

基本 文件 流程 错误 SQL 调试
  1. 请求信息 : 2026-11-04 23:02:08 HTTP/1.1 GET : http://a.sjds.net/a/534617.html
  2. 运行时间 : 0.075740s [ 吞吐率：13.20req/s ] 内存消耗：4,319.71kb 文件加载：140
  3. 缓存信息 : 0 reads,0 writes
  4. 会话信息 : SESSION_ID=f699ddebed55d77847195968ab041528
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  1. CONNECT:[ UseTime:0.000405s ] mysql:host=172.18.0.4;port=3306;dbname=a_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000804s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000436s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000376s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000564s ]
  6. SELECT * FROM `set` [ RunTime:0.000331s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000751s ]
  8. SELECT * FROM `article` WHERE `id` = 534617 LIMIT 1 [ RunTime:0.000419s ]
  9. UPDATE `article` SET `lasttime` = 1793804528 WHERE `id` = 534617 [ RunTime:0.001227s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.000311s ]
  11. SELECT * FROM `article` WHERE `id` < 534617 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000406s ]
  12. SELECT * FROM `article` WHERE `id` > 534617 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000366s ]
  13. SELECT * FROM `article` WHERE `id` < 534617 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000821s ]
  14. SELECT * FROM `article` WHERE `id` < 534617 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000545s ]
  15. SELECT * FROM `article` WHERE `id` < 534617 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000592s ]
0.085456s