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 85 50.9%
2 United States 39 23.4%
3 Germany 6 3.6%
4 Hong Kong 6 3.6%
5 Portugal 6 3.6%
6 Canada 6 3.6%
7 France 5 3%
8 Senegal 3 1.8%
9 Taiwan 3 1.8%
10 Ukraine 3 1.8%
11 Sweden 2 1.2%
12 Singapore 1 0.6%
13 Malaysia 1 0.6%
14 United Kingdom 1 0.6%