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 158 45.1%
2 United States 129 36.9%
3 Germany 29 8.3%
4 Hong Kong 8 2.3%
5 Canada 3 0.9%
6 Belgium 2 0.6%
7 Malaysia 2 0.6%
8 Philippines 2 0.6%
9 Russia 2 0.6%
10 Senegal 2 0.6%
11 Singapore 2 0.6%
12 Spain 2 0.6%
13 Sweden 2 0.6%
14 Switzerland 2 0.6%
15 Taiwan 2 0.6%
16 United Kingdom 2 0.6%
17 France 1 0.3%