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 91 40.3%
2 China 67 29.6%
3 Germany 35 15.5%
4 Netherlands 8 3.5%
5 Chile 4 1.8%
6 Canada 3 1.3%
7 Hong Kong 3 1.3%
8 France 3 1.3%
9 Russia 3 1.3%
10 Sweden 2 0.9%
11 Philippines 2 0.9%
12 Korea, Republic of 2 0.9%
13 Iraq 1 0.4%
14 Czech Republic 1 0.4%
15 Estonia 1 0.4%