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 241 65.1%
2 United States 60 16.2%
3 Germany 39 10.5%
4 Hong Kong 7 1.9%
5 Russia 4 1.1%
6 Taiwan 3 0.8%
7 France 3 0.8%
8 Australia 2 0.5%
9 Japan 2 0.5%
10 Netherlands 2 0.5%
11 Singapore 2 0.5%
12 Switzerland 1 0.3%
13 Turkey 1 0.3%
14 Ukraine 1 0.3%
15 United Kingdom 1 0.3%
16 Canada 1 0.3%