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 97 50.3%
2 United States 40 20.7%
3 France 19 9.8%
4 Netherlands 15 7.8%
5 Russia 10 5.2%
6 Germany 6 3.1%
7 Taiwan 2 1%
8 Ukraine 1 0.5%
9 Sweden 1 0.5%
10 Hong Kong 1 0.5%
11 Czech Republic 1 0.5%