viewimageM.php?id=employment&no=29bcc427b78077a16fb3dab004c86b6f58fd4e160e9f6d531721351aa55632ee5ada1c24e99ff359d81606f8a27ecd398df02e7f4ac80640242e7116eecc1cadd4ac2db02b8648f3147acddab1080583a072

공학인증하면 빡세다는데
꼭해야함?
장단점좀;;