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 192 67.8%
2 United States 37 13.1%
3 Germany 32 11.3%
4 Netherlands 9 3.2%
5 Canada 3 1.1%
6 Argentina 2 0.7%
7 Brazil 2 0.7%
8 Finland 1 0.4%
9 Serbia 1 0.4%
10 Singapore 1 0.4%
11 United Kingdom 1 0.4%
12 Hong Kong 1 0.4%
13 Mauritius 1 0.4%