69% ӵ , 1.2, 1.4 ̿ ¶ ȮǸ鼭 л ߽ ο ͳ Ȱ ȭ ־ ȭ. ù ° Ǹ ӵ . ͳ Ǹ κ л Ǹ ۵ ӵ ʰ, 1.2 Ȥ 1.4ӿ Դ 2.0ӱ ӵ ûϰ ִٴ Դ. ް͵ , 4 28Ϻ 5 7ϱ 갣 ̿ڵ м , Ⱓ Ǹ û ȸ 5 1,220 80% شϴ 41,087 ӵ ̿ Ÿ. , κ л ӵ ų Ȥ ӵ Ƿ Ǹ û . Ⱓ 69% ӵ ԡ Ǹ û, 29% ӵ Ǹ ûߴ. ӵ Ǹ û 2% ƴ. ȸ ̿ ӵ 1.2Ӱ 1.4 19% ߰, 2(14%), 1.6(11%), 1.8(6%) ̾. ް͵ 2 60¥ Ǹ 30 ֱ ð Ư Ȱϴ ١鼭 ¶ ̿ڰ þ鼭 ο 븸 ο нϰ ȭ ִ١ ߴ. 2006 5 10 e-Learning Plus ȯ sih@contentsmedia.com