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 201 53.9%
2 United States 73 19.6%
3 Germany 54 14.5%
4 Canada 10 2.7%
5 Hong Kong 9 2.4%
6 Belgium 6 1.6%
7 Italy 5 1.3%
8 Taiwan 4 1.1%
9 Russia 3 0.8%
10 Norway 2 0.5%
11 Turkey 2 0.5%
12 Georgia 2 0.5%
13 Netherlands 1 0.3%
14 United Kingdom 1 0.3%