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 353 75.4%
2 United States 48 10.3%
3 Germany 30 6.4%
4 Hong Kong 8 1.7%
5 Taiwan 7 1.5%
6 Russia 5 1.1%
7 Singapore 4 0.9%
8 Serbia 2 0.4%
9 Australia 2 0.4%
10 Canada 2 0.4%
11 Japan 2 0.4%
12 Malaysia 2 0.4%
13 Netherlands 2 0.4%
14 United Kingdom 1 0.2%