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 144 58.1%
2 United States 42 16.9%
3 Germany 39 15.7%
4 Russia 6 2.4%
5 Ukraine 2 0.8%
6 United Kingdom 2 0.8%
7 Viet Nam 2 0.8%
8 Hong Kong 2 0.8%
9 Ireland 2 0.8%
10 Brazil 2 0.8%
11 Canada 2 0.8%
12 France 1 0.4%
13 Italy 1 0.4%
14 Mauritius 1 0.4%