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 133 57.6%
2 United States 52 22.5%
3 Germany 27 11.7%
4 Hong Kong 4 1.7%
5 Ireland 3 1.3%
6 Netherlands 3 1.3%
7 Russia 3 1.3%
8 United Kingdom 2 0.9%
9 Luxembourg 2 0.9%
10 Romania 1 0.4%
11 Korea, Republic of 1 0.4%