2021 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | China | 8 | 61.5% |
2 | United States | 3 | 23.1% |
3 | Germany | 1 | 7.7% |
4 | Korea, Republic of | 1 | 7.7% |
排名 | 国家/地区 | 数量 | 占比 |
1 | China | 8 | 61.5% |
2 | United States | 3 | 23.1% |
3 | Germany | 1 | 7.7% |
4 | Korea, Republic of | 1 | 7.7% |