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 47 38.2%
2 China 15 12.2%
3 Germany 15 12.2%
4 Netherlands 14 11.4%
5 France 10 8.1%
6 Canada 5 4.1%
7 Poland 3 2.4%
8 Japan 2 1.6%
9 Denmark 2 1.6%
10 Finland 2 1.6%
11 Iran, Islamic Republic of 2 1.6%
12 Italy 1 0.8%
13 Hungary 1 0.8%
14 Brazil 1 0.8%
15 Russia 1 0.8%
16 Turkey 1 0.8%
17 United Kingdom 1 0.8%