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 160 48.8%
2 United States 55 16.8%
3 Germany 42 12.8%
4 Netherlands 33 10.1%
5 Canada 14 4.3%
6 Taiwan 7 2.1%
7 Albania 4 1.2%
8 Ireland 4 1.2%
9 Ukraine 3 0.9%
10 United Kingdom 2 0.6%
11 Romania 2 0.6%
12 Singapore 1 0.3%
13 Morocco 1 0.3%