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 United States 64 37.6%
2 China 41 24.1%
3 Germany 21 12.4%
4 Netherlands 10 5.9%
5 Russia 7 4.1%
6 Chile 5 2.9%
7 Hong Kong 4 2.4%
8 Finland 4 2.4%
9 United Kingdom 3 1.8%
10 Ukraine 2 1.2%
11 Estonia 2 1.2%
12 Colombia 1 0.6%
13 Czech Republic 1 0.6%
14 France 1 0.6%
15 India 1 0.6%
16 Singapore 1 0.6%
17 Switzerland 1 0.6%
18 Taiwan 1 0.6%