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 172 64.4%
2 United States 44 16.5%
3 Germany 25 9.4%
4 Ireland 9 3.4%
5 Canada 4 1.5%
6 Hong Kong 3 1.1%
7 Finland 2 0.7%
8 Kazakhstan 2 0.7%
9 Singapore 2 0.7%
10 Switzerland 1 0.4%
11 Taiwan 1 0.4%
12 Korea, Republic of 1 0.4%
13 Saudi Arabia 1 0.4%