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 236 61.3%
2 United States 72 18.7%
3 Germany 51 13.2%
4 Russia 6 1.6%
5 Sweden 4 1%
6 Netherlands 3 0.8%
7 Taiwan 2 0.5%
8 United Kingdom 2 0.5%
9 Singapore 2 0.5%
10 Australia 2 0.5%
11 Belgium 2 0.5%
12 Canada 1 0.3%
13 Hong Kong 1 0.3%
14 Malta 1 0.3%