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 170 56.5%
2 United States 53 17.6%
3 Germany 30 10%
4 Canada 19 6.3%
5 Singapore 11 3.7%
6 Romania 3 1%
7 Russia 2 0.7%
8 Hong Kong 2 0.7%
9 Luxembourg 2 0.7%
10 Macao 2 0.7%
11 Switzerland 2 0.7%
12 Turkey 2 0.7%
13 Taiwan 1 0.3%
14 Mexico 1 0.3%
15 1 0.3%