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 188 49.9%
2 United States 52 13.8%
3 Canada 47 12.5%
4 Germany 36 9.5%
5 Netherlands 23 6.1%
6 Sweden 14 3.7%
7 Brazil 6 1.6%
8 France 2 0.5%
9 Russia 2 0.5%
10 Singapore 2 0.5%
11 India 2 0.5%
12 United Kingdom 1 0.3%
13 Spain 1 0.3%
14 Bulgaria 1 0.3%