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 165 60.9%
2 United States 44 16.2%
3 Germany 17 6.3%
4 Hong Kong 11 4.1%
5 Canada 5 1.8%
6 Portugal 5 1.8%
7 Russia 3 1.1%
8 Senegal 3 1.1%
9 United Kingdom 3 1.1%
10 Netherlands 3 1.1%
11 3 1.1%
12 Japan 2 0.7%
13 Norway 2 0.7%
14 Taiwan 2 0.7%
15 Ukraine 1 0.4%
16 Malaysia 1 0.4%
17 Ireland 1 0.4%