BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 China 141 53%
2 United States 68 25.6%
3 Netherlands 17 6.4%
4 Germany 11 4.1%
5 Hong Kong 8 3%
6 Taiwan 6 2.3%
7 Japan 3 1.1%
8 United Kingdom 2 0.8%
9 Romania 2 0.8%
10 Russia 1 0.4%
11 Sweden 1 0.4%
12 Switzerland 1 0.4%
13 Portugal 1 0.4%
14 Canada 1 0.4%
15 Czech Republic 1 0.4%
16 India 1 0.4%
17 Ireland 1 0.4%