發送短信 : A survey on the conceptual understanding of students on heat and temperature

 _    _    _    _    _    _      ___      ______  
| || | || | || | || | || | ||   / _ \\   /_   _// 
| || | || | || | || | || | ||  / //\ \\    | ||   
| \\_/ || | \\_/ || | \\_/ || |  ___  ||  _| ||   
 \____//   \____//   \____//  |_||  |_|| /__//    
  `---`     `---`     `---`   `-`   `-`  `--`