Air conditioning and refrigeration machine technician voice questions can be studied through past questions. It is designed to be used, and all functions are available for free.★ Problem solvingYou can learn the type and content of the questions through the questions provided.Problems are read aloud to help with learning.When you solve a problem, you can check the answer immediately,★ Wrong questionYou can review incorrect questions.- You can study important questions repeatedly.
2016년 공조냉동기계기능사 음성기출문제
