PPT BÀI 13

"{\"id\":953,\"type\":\"document\",\"url\":\"https:\/\/tiengtrunghoangkim.easyedu.vn\/sites\/default\/files\/easyschool\/upload\/2024\/09\/bai_13.pptx\",\"width\":null,\"height\":null,\"thumbnail\":\"https:\/\/tiengtrunghoangkim.easyedu.vn\/sites\/all\/themes\/easyedu\/images\/powerpoint-large.png\"}"