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 175 63.4%
2 United States 51 18.5%
3 Germany 25 9.1%
4 United Kingdom 6 2.2%
5 Russia 4 1.4%
6 Canada 3 1.1%
7 Brazil 2 0.7%
8 Turkey 2 0.7%
9 Netherlands 2 0.7%
10 Norway 2 0.7%
11 Estonia 1 0.4%
12 Hong Kong 1 0.4%
13 Indonesia 1 0.4%
14 Luxembourg 1 0.4%