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 135 60.8%
2 United States 33 14.9%
3 Germany 27 12.2%
4 Ireland 6 2.7%
5 Hong Kong 4 1.8%
6 Russia 3 1.4%
7 Singapore 3 1.4%
8 Korea, Republic of 2 0.9%
9 Netherlands 2 0.9%
10 Poland 2 0.9%
11 Canada 2 0.9%
12 United Kingdom 2 0.9%
13 Taiwan 1 0.5%