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 198 41.1%
2 United States 197 40.9%
3 Germany 36 7.5%
4 Canada 25 5.2%
5 Ireland 10 2.1%
6 Netherlands 3 0.6%
7 Singapore 3 0.6%
8 France 3 0.6%
9 Hong Kong 3 0.6%
10 Australia 2 0.4%
11 Switzerland 1 0.2%
12 United Kingdom 1 0.2%