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 United States 66 40.7%
2 China 52 32.1%
3 Germany 10 6.2%
4 Netherlands 8 4.9%
5 Portugal 6 3.7%
6 Hong Kong 6 3.7%
7 3 1.9%
8 Senegal 3 1.9%
9 Taiwan 2 1.2%
10 Russia 2 1.2%
11 Canada 1 0.6%
12 Ireland 1 0.6%
13 Malaysia 1 0.6%
14 United Kingdom 1 0.6%