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 191 75.5%
2 United States 25 9.9%
3 Germany 16 6.3%
4 Canada 5 2%
5 Hong Kong 3 1.2%
6 Taiwan 3 1.2%
7 Algeria 2 0.8%
8 Sweden 2 0.8%
9 Tunisia 1 0.4%
10 Ukraine 1 0.4%
11 United Kingdom 1 0.4%
12 Israel 1 0.4%
13 Portugal 1 0.4%
14 Russia 1 0.4%