2018 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | China | 27 | 73% |
2 | United States | 6 | 16.2% |
3 | Germany | 3 | 8.1% |
4 | Republic of Korea | 1 | 2.7% |
排名 | 国家/地区 | 数量 | 占比 |
1 | China | 27 | 73% |
2 | United States | 6 | 16.2% |
3 | Germany | 3 | 8.1% |
4 | Republic of Korea | 1 | 2.7% |