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 106 48.2%
2 United States 57 25.9%
3 Germany 12 5.5%
4 Netherlands 9 4.1%
5 Hong Kong 8 3.6%
6 Portugal 5 2.3%
7 Canada 4 1.8%
8 Taiwan 3 1.4%
9 United Kingdom 3 1.4%
10 Senegal 3 1.4%
11 3 1.4%
12 Russia 2 0.9%
13 Singapore 1 0.5%
14 Belgium 1 0.5%
15 Denmark 1 0.5%
16 Korea, Republic of 1 0.5%
17 Moldova, Republic of 1 0.5%