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 266 67.2%
2 United States 55 13.9%
3 Germany 33 8.3%
4 Canada 22 5.6%
5 Netherlands 4 1%
6 Romania 2 0.5%
7 Sweden 2 0.5%
8 United Kingdom 2 0.5%
9 Malaysia 2 0.5%
10 Finland 2 0.5%
11 France 2 0.5%
12 Hong Kong 2 0.5%
13 India 1 0.3%
14 Japan 1 0.3%