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 102 51.3%
2 United States 38 19.1%
3 Netherlands 27 13.6%
4 Taiwan 10 5%
5 France 10 5%
6 Germany 3 1.5%
7 Canada 3 1.5%
8 Russia 2 1%
9 Czech Republic 2 1%
10 Hong Kong 1 0.5%
11 Sweden 1 0.5%