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 146 60.1%
2 United States 34 14%
3 Germany 22 9.1%
4 Hong Kong 11 4.5%
5 Ireland 6 2.5%
6 Taiwan 6 2.5%
7 Russia 4 1.6%
8 Japan 3 1.2%
9 Korea, Republic of 2 0.8%
10 Luxembourg 2 0.8%
11 Romania 2 0.8%
12 Brazil 1 0.4%
13 France 1 0.4%
14 Netherlands 1 0.4%
15 Singapore 1 0.4%
16 United Kingdom 1 0.4%