BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 China 60 41.7%
2 United States 32 22.2%
3 Germany 13 9%
4 Hong Kong 9 6.2%
5 Netherlands 6 4.2%
6 Portugal 5 3.5%
7 Canada 5 3.5%
8 3 2.1%
9 Russia 3 2.1%
10 Senegal 3 2.1%
11 Taiwan 2 1.4%
12 Japan 2 1.4%
13 France 1 0.7%