인류의 4대 문명 by 장세준 https://padlet.com/thirdpoettechnologies/1puq4a3r8ouow0t9 4대문명의 위치를 찾고 1,.대표적인 유적 2.문자 3.특징을 조사하여 올립니다 en-us 2023-03-12 23:13:04 UTC 2023-03-12 23:31:39 UTC hello@padlet.com 중국 문명 https://padlet.com/thirdpoettechnologies/1puq4a3r8ouow0t9/wish/2513492182 2023-03-12 23:31:04 UTC https://padlet.com/thirdpoettechnologies/1puq4a3r8ouow0t9/wish/2513492182