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 United States 48 36.4%
2 China 40 30.3%
3 Germany 13 9.8%
4 Hong Kong 8 6.1%
5 Portugal 6 4.5%
6 Korea, Republic of 4 3%
7 3 2.3%
8 Senegal 3 2.3%
9 United Kingdom 2 1.5%
10 Russia 1 0.8%
11 Canada 1 0.8%
12 Greece 1 0.8%
13 Netherlands 1 0.8%
14 India 1 0.8%