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 48 48.5%
2 Netherlands 15 15.2%
3 Germany 11 11.1%
4 United States 10 10.1%
5 Italy 6 6.1%
6 Canada 3 3%
7 Hong Kong 2 2%
8 Russia 1 1%
9 Singapore 1 1%
10 Austria 1 1%
11 France 1 1%