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 188 55%
2 United States 67 19.6%
3 Germany 37 10.8%
4 Taiwan 29 8.5%
5 Hong Kong 6 1.8%
6 Russia 4 1.2%
7 Australia 3 0.9%
8 Belgium 2 0.6%
9 Canada 1 0.3%
10 United Kingdom 1 0.3%
11 India 1 0.3%
12 Ireland 1 0.3%
13 Japan 1 0.3%
14 Netherlands 1 0.3%