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 130 56.3%
2 United States 37 16%
3 Netherlands 21 9.1%
4 Germany 12 5.2%
5 France 11 4.8%
6 Japan 5 2.2%
7 Ukraine 4 1.7%
8 Russia 4 1.7%
9 Taiwan 2 0.9%
10 Sweden 1 0.4%
11 Hong Kong 1 0.4%
12 Canada 1 0.4%
13 Czech Republic 1 0.4%
14 Finland 1 0.4%