2018 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | China | 68 | 71.6% |
2 | United States | 16 | 16.8% |
3 | Germany | 9 | 9.5% |
4 | Republic of Korea | 2 | 2.1% |
排名 | 国家/地区 | 数量 | 占比 |
1 | China | 68 | 71.6% |
2 | United States | 16 | 16.8% |
3 | Germany | 9 | 9.5% |
4 | Republic of Korea | 2 | 2.1% |