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 183 58.1%
2 United States 51 16.2%
3 Germany 36 11.4%
4 Russia 8 2.5%
5 Taiwan 7 2.2%
6 Korea, Republic of 6 1.9%
7 Netherlands 5 1.6%
8 Singapore 4 1.3%
9 Sweden 4 1.3%
10 Canada 3 1%
11 Hong Kong 2 0.6%
12 Japan 2 0.6%
13 United Kingdom 2 0.6%
14 Austria 1 0.3%
15 France 1 0.3%