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隔壁班老师追着要的摩擦力课件齐了

  • 2026-11-07 23:43:19

隔壁班老师追着要的摩擦力课件齐了

这套五上教科版科学《摩擦力的比较》课件在办公室传开了。

21 页 PPT 顺着一条线走完：拉手游戏感知摩擦力，科普视频认一认，弹簧测力计测小车，车轮锁死对滚动、光滑对粗糙、空车对加重三组对比，研讨一路聊到玉兔号的宽纹轮和磁悬浮列车。逐字稿把调零、匀速、平视读数的提醒都写进去了，教案设计把目标、流程、板书、观察自行车的实践作业配齐。

21 页 PPT 加逐字稿加教案，备一节课要翻的资料一次到位，省下的时间多陪孩子拉几轮测力计。 #教科版科学 #五年级上册 #摩擦力的比较 #工具与技术 #科学课件PPT #科学教案 #科学逐字稿 #小学科学 #科学备课资料 #科学教学素材

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气道净化护理PPT|排痰技术临床实操课件

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  1. CONNECT:[ UseTime:0.000711s ] mysql:host=172.18.0.4;port=3306;dbname=a_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000920s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000447s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000389s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000576s ]
  6. SELECT * FROM `set` [ RunTime:0.000302s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000740s ]
  8. SELECT * FROM `article` WHERE `id` = 537678 LIMIT 1 [ RunTime:0.000366s ]
  9. UPDATE `article` SET `lasttime` = 1794136937 WHERE `id` = 537678 [ RunTime:0.001609s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.000310s ]
  11. SELECT * FROM `article` WHERE `id` < 537678 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000411s ]
  12. SELECT * FROM `article` WHERE `id` > 537678 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000343s ]
  13. SELECT * FROM `article` WHERE `id` < 537678 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000468s ]
  14. SELECT * FROM `article` WHERE `id` < 537678 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000742s ]
  15. SELECT * FROM `article` WHERE `id` < 537678 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000682s ]
0.085308s