| | | | | | 1717 1766 18 | | | | | | 1717 | | | | 1721 | | | | | | | | | | 1766 | | 18 | 1774 | | | 18 | | 1780 | | 129 | | | | | 1. | 2. | | 3. | | | ⑴ | | | | | ⑵ | | ① | | | | ② | | | ③ | | ④ | | | | ⑶ | | | ⑷ | | | | 4. | | | 5. | | | | 6. | | | | | | | |