BPG致力于知识的发现和传播
Total Visits of This Article
2021 | 总访问次数
排名 国家/地区 数量 占比
1 China 204 68.9%
2 United States 36 12.2%
3 Germany 22 7.4%
4 Russia 11 3.7%
5 Hong Kong 8 2.7%
6 Taiwan 5 1.7%
7 Tajikistan 2 0.7%
8 United Kingdom 2 0.7%
9 Ireland 2 0.7%
10 Moldova, Republic of 2 0.7%
11 Czech Republic 2 0.7%