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 147 49.2%
2 United States 73 24.4%
3 Germany 47 15.7%
4 Netherlands 14 4.7%
5 Russia 3 1%
6 United Kingdom 3 1%
7 Hong Kong 2 0.7%
8 Ireland 2 0.7%
9 Armenia 2 0.7%
10 Australia 2 0.7%
11 Austria 1 0.3%
12 Belgium 1 0.3%
13 Canada 1 0.3%
14 Switzerland 1 0.3%