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 187 59.9%
2 United States 52 16.7%
3 Germany 43 13.8%
4 Russia 7 2.2%
5 Canada 4 1.3%
6 Ukraine 3 1%
7 Singapore 3 1%
8 Brazil 3 1%
9 Australia 2 0.6%
10 France 2 0.6%
11 Sweden 2 0.6%
12 United Kingdom 2 0.6%
13 India 1 0.3%
14 Taiwan 1 0.3%