| | | 5% | 10 ~12 | | | 1/3 ~ 1/2 | 1/5 | 2 | | | | | 3 | | | 1. 30 | 2. 30 ~ 45 | | 3. | 4. | | C | | | 2 ~ 12 | | 1. 30 | 2 ~ 3 2 | | |