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 220 51%
2 United States 129 29.9%
3 Germany 33 7.7%
4 Canada 21 4.9%
5 Taiwan 9 2.1%
6 Singapore 4 0.9%
7 Brazil 3 0.7%
8 Finland 2 0.5%
9 France 2 0.5%
10 Latvia 2 0.5%
11 Peru 2 0.5%
12 Thailand 1 0.2%
13 United Kingdom 1 0.2%
14 Netherlands 1 0.2%
15 Japan 1 0.2%