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 165 54.8%
2 United States 69 22.9%
3 Germany 27 9%
4 France 18 6%
5 India 4 1.3%
6 Philippines 4 1.3%
7 United Kingdom 3 1%
8 Russia 2 0.7%
9 Spain 2 0.7%
10 Taiwan 2 0.7%
11 Ukraine 1 0.3%
12 Italy 1 0.3%
13 Netherlands 1 0.3%
14 Estonia 1 0.3%
15 Finland 1 0.3%