| | | | | | | | | | ； | | ； | | ； | | | ； | | | | | | | | | | | | | ； | ； | | | | | | | | | ； | | | | | | | | | | | | | | | | | ； | | | | | | | | | | | | | | | 1. | | | | | 2. | | | | | 3. | | | | | | | | | |