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 165 49.7%
2 United States 75 22.6%
3 Germany 27 8.1%
4 Netherlands 26 7.8%
5 France 20 6%
6 Russia 6 1.8%
7 United Kingdom 4 1.2%
8 Sweden 3 0.9%
9 Hong Kong 3 0.9%
10 Czech Republic 2 0.6%
11 Taiwan 1 0.3%