2019 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | China | 2 | 33.3% |
2 | Iran, Islamic Republic of | 2 | 33.3% |
3 | Czech Republic | 1 | 16.7% |
4 | Germany | 1 | 16.7% |
排名 | 国家/地区 | 数量 | 占比 |
1 | China | 2 | 33.3% |
2 | Iran, Islamic Republic of | 2 | 33.3% |
3 | Czech Republic | 1 | 16.7% |
4 | Germany | 1 | 16.7% |