Contact us
Choose a category below so we can get back to you as quickly as possible.
0.2: 0.4 = 0.5, 0.5: 1 = 0.5 의 구성 비율 은 0.2: 0.4 = 0.5: 1 이 므 로 정 답 은 0.2: 0.4 = 0.5: 1 이다.
We and our partners use cookies and other technologies to analyze traffic and optimize your experience. View more info and control your cookies settings at any time in our Cookies Policy.