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 149 48.5%
2 United States 71 23.1%
3 Germany 37 12.1%
4 Canada 15 4.9%
5 Hong Kong 6 2%
6 Taiwan 6 2%
7 Russia 5 1.6%
8 Ukraine 4 1.3%
9 France 4 1.3%
10 Singapore 3 1%
11 2 0.7%
12 Portugal 2 0.7%
13 Hungary 1 0.3%
14 Australia 1 0.3%
15 United Kingdom 1 0.3%