True: Deep sea drivers carry oxygen cylinder with them., In a dark room dust particles can be seen in the path of light, False: Smoke does not act as a pollutant., Hydrogen acts as a fire extinguisher. , 2. In the absence of oxygen, we can burn LPG. ,

순위표

비주얼 스타일

옵션

템플릿 전환하기

자동 저장된 게임을 복구할까요?