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 307 64.5%
2 United States 60 12.6%
3 Germany 29 6.1%
4 Hong Kong 28 5.9%
5 Canada 14 2.9%
6 Taiwan 10 2.1%
7 United Kingdom 6 1.3%
8 Japan 6 1.3%
9 Russia 4 0.8%
10 Singapore 2 0.4%
11 Viet Nam 2 0.4%
12 Romania 2 0.4%
13 Brazil 2 0.4%
14 Czech Republic 2 0.4%
15 Netherlands 1 0.2%
16 Italy 1 0.2%