[2021년 개정 - 드론 필기] 👋드론 자격증 필기 3강 -항공법규 - 빛드론

2021 28:18
Synopsis
필기 기출문제 사이트 https://www.drone-box.co.kr/main/html.php?htmid=event/dronetest.html 초경량비행장치 무인멀티콥터 조종사 ...

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