컴퓨터활용능력
https://www.comcbt.com/cbt/android_s_view3_main.php
www.comcbt.com/cbt/android_s_view3_main.php
https://www.gseek.kr/share/learn/edu.gm?CF_CODE=5a69373957a50&CM_CODE=5a69373954fcd&CS_CODE=5a693739569e6&SG_CODE=5a69acbdd1d2e&SC_IDX=2147
www.gseek.kr/share/learn/edu.gm?CF_CODE=5a69373957a50&CM_CODE=5a69373954fcd&CS_CODE=5a693739569e6&SG_CODE=5a69acbdd1d2e&SC_IDX=2147