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 342 53.9%
2 United States 130 20.5%
3 Germany 67 10.6%
4 Netherlands 46 7.3%
5 Canada 17 2.7%
6 France 11 1.7%
7 Hong Kong 7 1.1%
8 Russia 3 0.5%
9 Sweden 3 0.5%
10 Ukraine 3 0.5%
11 India 2 0.3%
12 Singapore 1 0.2%
13 Brazil 1 0.2%
14 Finland 1 0.2%