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 168 47.5%
2 United States 108 30.5%
3 Germany 36 10.2%
4 Canada 16 4.5%
5 Russia 10 2.8%
6 Netherlands 6 1.7%
7 Ukraine 3 0.8%
8 Taiwan 2 0.6%
9 Hong Kong 2 0.6%
10 France 1 0.3%
11 Philippines 1 0.3%
12 United Kingdom 1 0.3%