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 170 49.6%
2 United States 69 20.1%
3 Germany 60 17.5%
4 France 13 3.8%
5 Russia 6 1.7%
6 Singapore 5 1.5%
7 Sweden 4 1.2%
8 Taiwan 3 0.9%
9 Canada 3 0.9%
10 Netherlands 3 0.9%
11 Hong Kong 2 0.6%
12 Cyprus 2 0.6%
13 Finland 2 0.6%
14 Ukraine 1 0.3%