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 217 51.2%
2 United States 110 25.9%
3 Germany 36 8.5%
4 Netherlands 21 5%
5 Canada 18 4.2%
6 Hong Kong 4 0.9%
7 Russia 3 0.7%
8 Sweden 2 0.5%
9 Taiwan 2 0.5%
10 Romania 2 0.5%
11 France 2 0.5%
12 Australia 2 0.5%
13 Brazil 2 0.5%
14 India 1 0.2%
15 Japan 1 0.2%
16 United Kingdom 1 0.2%