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 United States 70 52.2%
2 Netherlands 20 14.9%
3 China 13 9.7%
4 Russia 8 6%
5 Germany 6 4.5%
6 Canada 4 3%
7 United Kingdom 3 2.2%
8 South Africa 2 1.5%
9 France 2 1.5%
10 Korea, Republic of 2 1.5%
11 Hong Kong 1 0.7%
12 Australia 1 0.7%
13 Denmark 1 0.7%
14 Ukraine 1 0.7%