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 207 65.9%
2 United States 50 15.9%
3 Germany 17 5.4%
4 Netherlands 12 3.8%
5 Hong Kong 9 2.9%
6 Portugal 5 1.6%
7 Taiwan 5 1.6%
8 Senegal 3 1%
9 United Kingdom 2 0.6%
10 Russia 1 0.3%
11 France 1 0.3%
12 India 1 0.3%
13 Japan 1 0.3%