BPG致力于知识的发现和传播
Total Visits of This Article
2021 | 总访问次数
排名 国家/地区 数量 占比
1 China 49 29.5%
2 United States 49 29.5%
3 Japan 15 9%
4 Canada 13 7.8%
5 Ireland 11 6.6%
6 India 8 4.8%
7 Germany 8 4.8%
8 Netherlands 3 1.8%
9 Russia 2 1.2%
10 France 2 1.2%
11 Sweden 2 1.2%
12 Turkey 2 1.2%
13 Greece 1 0.6%
14 Slovakia 1 0.6%