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 69 41.6%
2 United States 35 21.1%
3 Netherlands 23 13.9%
4 Germany 16 9.6%
5 Hong Kong 5 3%
6 Portugal 5 3%
7 Senegal 3 1.8%
8 United Kingdom 3 1.8%
9 Canada 2 1.2%
10 Russia 2 1.2%
11 France 1 0.6%
12 Indonesia 1 0.6%
13 Japan 1 0.6%