22 정성운_통신수단(전화)의 발달 조사하기 by 정성운 https://padlet.com/21g3222/mnv1yv9imqfovy7x en-us 2021-06-17 02:09:06 UTC 2026-04-07 12:11:48 UTC hello@padlet.com 교환원이있는전화 21g3222 https://padlet.com/21g3222/mnv1yv9imqfovy7x/wish/1611273944 교환원이있는전화는교환원이있어야전화할수있다.]]> 2021-06-17 02:14:58 UTC https://padlet.com/21g3222/mnv1yv9imqfovy7x/wish/1611273944 유선전화 21g3222 https://padlet.com/21g3222/mnv1yv9imqfovy7x/wish/1611278823 유선전화는선이있어야전화할수있다.]]> 2021-06-17 02:17:18 UTC https://padlet.com/21g3222/mnv1yv9imqfovy7x/wish/1611278823 무선전화 21g3222 https://padlet.com/21g3222/mnv1yv9imqfovy7x/wish/1611281768 무선전화는선이없은대신충전을해야하전화할수있다.]]> 2021-06-17 02:18:36 UTC https://padlet.com/21g3222/mnv1yv9imqfovy7x/wish/1611281768 스마트폰 21g3222 https://padlet.com/21g3222/mnv1yv9imqfovy7x/wish/1611294470 스마트폰은여러가지를할수있고
매새지도보내수있다.]]> 2021-06-17 02:24:40 UTC https://padlet.com/21g3222/mnv1yv9imqfovy7x/wish/1611294470 순서 21g3222 https://padlet.com/21g3222/mnv1yv9imqfovy7x/wish/1611297543 첫번째 교환원이있는전화
두번째 유선전화
세번째 무선전화
네번째 스마트폰
    끝^^]]> 2021-06-17 02:26:18 UTC https://padlet.com/21g3222/mnv1yv9imqfovy7x/wish/1611297543 마지막 - 사용하는모습 21g3222 https://padlet.com/21g3222/mnv1yv9imqfovy7x/wish/1611304659 2021-06-17 02:30:03 UTC https://padlet.com/21g3222/mnv1yv9imqfovy7x/wish/1611304659 교환원이있는전화 21g3222 https://padlet.com/21g3222/mnv1yv9imqfovy7x/wish/1611305717 2021-06-17 02:30:37 UTC https://padlet.com/21g3222/mnv1yv9imqfovy7x/wish/1611305717 유선전화 21g3222 https://padlet.com/21g3222/mnv1yv9imqfovy7x/wish/1611325113 2021-06-17 02:40:57 UTC https://padlet.com/21g3222/mnv1yv9imqfovy7x/wish/1611325113 무선전화 21g3222 https://padlet.com/21g3222/mnv1yv9imqfovy7x/wish/1611336479 2021-06-17 02:46:35 UTC https://padlet.com/21g3222/mnv1yv9imqfovy7x/wish/1611336479 스마트폰 21g3222 https://padlet.com/21g3222/mnv1yv9imqfovy7x/wish/1611338220 2021-06-17 02:47:27 UTC https://padlet.com/21g3222/mnv1yv9imqfovy7x/wish/1611338220