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 121 60.2%
2 United States 28 13.9%
3 Germany 18 9%
4 Hong Kong 11 5.5%
5 Taiwan 5 2.5%
6 United Kingdom 3 1.5%
7 Sweden 2 1%
8 Mexico 2 1%
9 Norway 2 1%
10 2 1%
11 Canada 2 1%
12 France 1 0.5%
13 Iran, Islamic Republic of 1 0.5%
14 Japan 1 0.5%
15 Portugal 1 0.5%
16 Spain 1 0.5%