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 77 54.6%
2 United States 29 20.6%
3 Germany 9 6.4%
4 Portugal 6 4.3%
5 Hong Kong 5 3.5%
6 Korea, Republic of 3 2.1%
7 3 2.1%
8 Senegal 2 1.4%
9 Sweden 1 0.7%
10 United Kingdom 1 0.7%
11 Moldova, Republic of 1 0.7%
12 Netherlands 1 0.7%
13 Russia 1 0.7%
14 Finland 1 0.7%
15 France 1 0.7%