| 1. | | | | | | | | 2. | | | | 3 | 20 30 | | | 3. | | | | | | | 4. | | | | | | | | | | | | | | | | 5. ※ ① | ② ③ | ④ | ※ | | | | | | | | | | | | 6. | ⑴ | | ⑵ | | | ⑶ | | ⑷ | | | | | | |