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同上一堂课0325四年级[科学]生活中的静电
同上一堂课0325四年级[科学]生活中的静电
同上一堂课【四年级】27/67
![同上一堂课0324四年级[数学]小数点搬家](http://p3-sign.bdxiguaimg.com/tos-cn-p-0000/bc6431f0ae394c7c936cad2cb17a7fb9~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=202501110705486F0A5F3BBE690C396B6D&requestFrom=704&version_code=80402&x-expires=1768086350&x-signature=dcXr%2BfARszWaxLWgDjuG7FN75yQ%3D)
App29:47![同上一堂课0325四年级[科学]生活中的静电](http://p26-sign.bdxiguaimg.com/tos-cn-p-0000/f10e730990b74c94af7a0240c2eb02e5~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=202501110705486F0A5F3BBE690C396B6D&requestFrom=704&version_code=80402&x-expires=1768086350&x-signature=BTqdsS9WXPAEbqiQxkjiV72QQNI%3D)
App29:46![同上一堂课0326四年级[英语]Unit 2 Lesson 5-6](http://p26-sign.bdxiguaimg.com/tos-cn-p-0000/5d1c1fba3c014d378f009a2029f87b97~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=202501110705486F0A5F3BBE690C396B6D&requestFrom=704&version_code=80402&x-expires=1768086350&x-signature=tdDsaE6Xy25IaMr3hDoo0gurgO8%3D)
App29:46![同上一堂课0327四年级[数学]街心广场-包装](http://p26-sign.bdxiguaimg.com/tos-cn-p-0000/d1ede1fb7f29450dbe8adb9db6db6edd~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=202501110705486F0A5F3BBE690C396B6D&requestFrom=704&version_code=80402&x-expires=1768086350&x-signature=Zd%2BwtMPzk72F3mUlSSKs2ce9bMs%3D)
App29:45![同上一堂课0330四年级[数学]蚕丝-手拉手](http://p3-sign.bdxiguaimg.com/tos-cn-p-0000/2a99d57d18c84882ab81f10cee41c880~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=202501110705486F0A5F3BBE690C396B6D&requestFrom=704&version_code=80402&x-expires=1768086350&x-signature=5swlz3OvNrkwWYrr375CF1fiWkU%3D)
App29:40![同上一堂课0331四年级[英语]Unit3 Lesson1-2](http://p3-sign.bdxiguaimg.com/tos-cn-p-0000/45175a3ffaf7469986da7d0f7197d6e0~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=202501110705486F0A5F3BBE690C396B6D&requestFrom=704&version_code=80402&x-expires=1768086350&x-signature=TObXPYo4Gq%2Fdl98QaKlnJwWJoIg%3D)
App27:29![同上一堂课0401四年级[语文]千年梦圆在今朝-习作](http://p3-sign.bdxiguaimg.com/tos-cn-p-0000/33ccc02e29854edfb648e2cfce6a8595~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=202501110705486F0A5F3BBE690C396B6D&requestFrom=704&version_code=80402&x-expires=1768086350&x-signature=HBHFwOe6DOExgJhX5m7yj5ehRgc%3D)
App29:01![同上一堂课0402四年级[美术]北京的城楼](http://p3-sign.bdxiguaimg.com/tos-cn-p-0000/3ef42d130a7840feaa467345fd85137b~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=202501110705486F0A5F3BBE690C396B6D&requestFrom=704&version_code=80402&x-expires=1768086350&x-signature=1dyJLnUWb59GkkkPqj%2FqV2lOStQ%3D)
App27:05![同上一堂课0403四年级[语文]快乐读书吧](http://p3-sign.bdxiguaimg.com/tos-cn-p-0000/1b5960b88bf840e186fa317e2169f4f4~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=202501110705486F0A5F3BBE690C396B6D&requestFrom=704&version_code=80402&x-expires=1768086350&x-signature=rthZHjfuz1JODwPlP4JLbzSbGbA%3D)
App29:19![同上一堂课0407四年级[语文]短诗三首-绿](http://p26-sign.bdxiguaimg.com/tos-cn-p-0000/a204624a22a640e097195f7386f1621a~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=202501110705486F0A5F3BBE690C396B6D&requestFrom=704&version_code=80402&x-expires=1768086350&x-signature=2yyYvi3DqIG7vZKk0hVr24xcmss%3D)
App29:44![同上一堂课0408四年级[英语]Unit 3 Lesson 3-4](http://p3-sign.bdxiguaimg.com/tos-cn-p-0000/d27351bca1244885893b2f0cfe852227~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=202501110705486F0A5F3BBE690C396B6D&requestFrom=704&version_code=80402&x-expires=1768086350&x-signature=Uux96jmu0bLxwIbTrFIdL8aL2wk%3D)
App29:43![同上一堂课0409四年级[实践]十岁天空](http://p3-sign.bdxiguaimg.com/tos-cn-p-0000/39cd827c508440ec98f8a43882f6f5e1~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=202501110705486F0A5F3BBE690C396B6D&requestFrom=704&version_code=80402&x-expires=1768086350&x-signature=mCQEksRKU13E5L0erHJavpXWhQg%3D)
App29:45![同上一堂课0410四年级[语文]白桦-在天晴了的时候](http://p3-sign.bdxiguaimg.com/tos-cn-p-0000/fe3a25f1b245400da6c99800325385ae~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=202501110705486F0A5F3BBE690C396B6D&requestFrom=704&version_code=80402&x-expires=1768086350&x-signature=rRu7Agex8XBiUuzWiMjOBWf6lls%3D)
App29:44![同上一堂课0413四年级[数学]练习三-看一看](http://p3-sign.bdxiguaimg.com/tos-cn-p-0000/8e444cccac7a4229bdedbfd76735f096~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=202501110705486F0A5F3BBE690C396B6D&requestFrom=704&version_code=80402&x-expires=1768086350&x-signature=BJBWmHmxhePZlLcmJviChEPBvxE%3D)
App29:46![同上一堂课0414四年级[英语]Unit 4 Lesson 1-2](http://p3-sign.bdxiguaimg.com/tos-cn-p-0000/84c2aa10504c48c99c67babf8915f473~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=202501110705486F0A5F3BBE690C396B6D&requestFrom=704&version_code=80402&x-expires=1768086350&x-signature=CDtzzr7IxOICNdW3UpoUxqFPsQA%3D)
App29:46![同上一堂课0415四年级[语文]猫](http://p26-sign.bdxiguaimg.com/tos-cn-p-0000/225de9c8094f401396fb460ffb400868~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=202501110705486F0A5F3BBE690C396B6D&requestFrom=704&version_code=80402&x-expires=1768086350&x-signature=ZdWRrIi1EwXZX6PfIzVtb6NFYbg%3D)
App29:46![同上一堂课0416四年级[数学]我说你搭-搭一搭](http://p26-sign.bdxiguaimg.com/tos-cn-p-0000/cc8a88b4c3ca464bb9536759cb54813f~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=202501110705486F0A5F3BBE690C396B6D&requestFrom=704&version_code=80402&x-expires=1768086350&x-signature=i9hG8BjhWMywF8M2QWE9QxY1SM4%3D)
App29:45![同上一堂课0417四年级[语文]母鸡](http://p26-sign.bdxiguaimg.com/tos-cn-p-0000/81717dcd1b1349429e973fc3b1b9106d~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=202501110705486F0A5F3BBE690C396B6D&requestFrom=704&version_code=80402&x-expires=1768086350&x-signature=A7ibTf9SyhbTdyA9hZifCipmJuo%3D)
App29:45![同上一堂课0420四年级[数学]字母表示数](http://p3-sign.bdxiguaimg.com/tos-cn-p-0000/c93bce0e9b95416798a914f149950999~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=202501110705486F0A5F3BBE690C396B6D&requestFrom=704&version_code=80402&x-expires=1768086350&x-signature=aBKkjjasuisF5bZQBKFXrJvof6g%3D)
App29:06![同上一堂课0421四年级[音乐]我是少年阿凡提-牧羊姑娘](http://p3-sign.bdxiguaimg.com/tos-cn-p-0000/ddf67efa6fd443159e11d372191bd1dd~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=202501110705486F0A5F3BBE690C396B6D&requestFrom=704&version_code=80402&x-expires=1768086350&x-signature=v%2B0AuKaCkqOh3mDTFXw9Dtw751Q%3D)
App29:35![同上一堂课0422四年级[语文]白鹅](http://p26-sign.bdxiguaimg.com/tos-cn-p-0000/805243cdf5b04143bb0152929198874f~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=202501110705486F0A5F3BBE690C396B6D&requestFrom=704&version_code=80402&x-expires=1768086350&x-signature=t8Yt6wjyZpGg7WACiBo13Ea3AAk%3D)
App29:02![同上一堂课0423四年级[英语]Unit 4 Lesson 3-4](http://p26-sign.bdxiguaimg.com/tos-cn-p-0000/cad6181efed747468d932f0f03103938~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=202501110705486F0A5F3BBE690C396B6D&requestFrom=704&version_code=80402&x-expires=1768086350&x-signature=yVF3V8R%2FjpcRyVxEetRljOMUYgc%3D)
App28:38![同上一堂课0424四年级[语文]习作](http://p3-sign.bdxiguaimg.com/tos-cn-p-0000/d13e9efb727a4c198f6445cc7ad08645~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=202501110705486F0A5F3BBE690C396B6D&requestFrom=704&version_code=80402&x-expires=1768086350&x-signature=liHdv3wEw7lB%2Bc7DRMrVmqOoTUA%3D)
App28:54![同上一堂课0426四年级[数学]等量关系-方程](http://p26-sign.bdxiguaimg.com/tos-cn-p-0000/bd2c62dd4a3e40ceb3a69a302a8f4f18~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=202501110705486F0A5F3BBE690C396B6D&requestFrom=704&version_code=80402&x-expires=1768086350&x-signature=Ggs6xh7c6hgmd6MpDgv0L38jltA%3D)
App29:05![同上一堂课0427四年级[语文]海上日出](http://p26-sign.bdxiguaimg.com/tos-cn-p-0000/3f0e47d8216d4d3d82f440bb12d5739b~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=202501110705486F0A5F3BBE690C396B6D&requestFrom=704&version_code=80402&x-expires=1768086350&x-signature=l%2BpTqs%2FgfGQ8L43PBUb0Zq758zA%3D)
App29:59![同上一堂课0428四年级[英语]Unit 5 Lesson 1-2](http://p3-sign.bdxiguaimg.com/tos-cn-p-0000/cb9cd539d3424ca189219c108ca21764~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=202501110705486F0A5F3BBE690C396B6D&requestFrom=704&version_code=80402&x-expires=1768086350&x-signature=Q3fXQBbBnDu4AyjOmQj5PcNcAVw%3D)
App29:59![同上一堂课0429四年级[语文]记金华的双龙洞](http://p3-sign.bdxiguaimg.com/tos-cn-p-0000/eb7dc655bbfa4eb186c836473006f742~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=202501110705486F0A5F3BBE690C396B6D&requestFrom=704&version_code=80402&x-expires=1768086350&x-signature=JXCaqwo3WU58cxA8jk%2Fd8rIkELE%3D)
App29:59![同上一堂课0430四年级[数学]解方程](http://p3-sign.bdxiguaimg.com/tos-cn-p-0000/84d90cd1a7504b63b4460e4c83d4c5ef~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=202501110705486F0A5F3BBE690C396B6D&requestFrom=704&version_code=80402&x-expires=1768086350&x-signature=YFnnEn4dw3AKCeyn%2Bmqjlhp75Pw%3D)
App29:58![同上一堂课0506四年级[数学]猜数游戏-奥运中的数学](http://p26-sign.bdxiguaimg.com/tos-cn-p-0000/820ad8583c164029a17a948e48858f65~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=202501110705486F0A5F3BBE690C396B6D&requestFrom=704&version_code=80402&x-expires=1768086350&x-signature=QRLY4mDl9SYaroOcix9msgDtv6s%3D)
App29:36![同上一堂课0507四年级[语文]小英雄雨来](http://p3-sign.bdxiguaimg.com/tos-cn-p-0026/f0a5007d5bfbfbe3d473e18c155a2839~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=202501110705486F0A5F3BBE690C396B6D&requestFrom=704&version_code=80402&x-expires=1768086350&x-signature=r26BF50G4%2BukOWH9OJGjjlOwX4c%3D)
App29:59![同上一堂课0508四年级[英语]Unit 5 Lesson 3-4](http://p3-sign.bdxiguaimg.com/tos-cn-p-0026/0a9f3ff162e0028fb6417e00f6465573~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=202501110705486F0A5F3BBE690C396B6D&requestFrom=704&version_code=80402&x-expires=1768086350&x-signature=QL9dbJeEKyGzpWT9INbKtUS3JbU%3D)
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