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 184 60.7%
2 United States 49 16.2%
3 Germany 18 5.9%
4 Taiwan 13 4.3%
5 Hong Kong 11 3.6%
6 Korea, Republic of 7 2.3%
7 United Kingdom 4 1.3%
8 Russia 4 1.3%
9 Singapore 3 1%
10 Netherlands 3 1%
11 Ireland 3 1%
12 Romania 2 0.7%
13 1 0.3%
14 Canada 1 0.3%