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 205 50.4%
2 United States 114 28%
3 Germany 61 15%
4 France 4 1%
5 Hong Kong 3 0.7%
6 Russia 3 0.7%
7 Taiwan 3 0.7%
8 United Kingdom 3 0.7%
9 Sweden 2 0.5%
10 Singapore 2 0.5%
11 Romania 2 0.5%
12 2 0.5%
13 Canada 1 0.2%
14 Spain 1 0.2%
15 Turkey 1 0.2%