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 231 62.8%
2 United States 63 17.1%
3 Germany 31 8.4%
4 Hong Kong 13 3.5%
5 Taiwan 9 2.4%
6 Netherlands 6 1.6%
7 Ireland 4 1.1%
8 Canada 4 1.1%
9 Belgium 3 0.8%
10 Italy 2 0.5%
11 Japan 1 0.3%
12 Georgia 1 0.3%