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 United States 37 36.3%
2 Germany 21 20.6%
3 Netherlands 20 19.6%
4 China 8 7.8%
5 Canada 5 4.9%
6 Russia 2 2%
7 Egypt 2 2%
8 France 2 2%
9 India 2 2%
10 Italy 1 1%
11 Philippines 1 1%
12 Poland 1 1%