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 188 68.1%
2 United States 45 16.3%
3 Germany 16 5.8%
4 Hong Kong 9 3.3%
5 Taiwan 7 2.5%
6 Russia 2 0.7%
7 Canada 2 0.7%
8 Japan 2 0.7%
9 Portugal 1 0.4%
10 Belgium 1 0.4%
11 India 1 0.4%
12 Ireland 1 0.4%
13 United Kingdom 1 0.4%