BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 China 107 43.7%
2 United States 96 39.2%
3 Germany 15 6.1%
4 France 5 2%
5 Canada 5 2%
6 Taiwan 5 2%
7 United Kingdom 4 1.6%
8 South Sudan 2 0.8%
9 Japan 2 0.8%
10 Russia 2 0.8%
11 Serbia 1 0.4%
12 Ukraine 1 0.4%