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 57 40.4%
2 China 46 32.6%
3 Germany 8 5.7%
4 France 6 4.3%
5 Japan 5 3.5%
6 Korea, Republic of 4 2.8%
7 Senegal 4 2.8%
8 Singapore 2 1.4%
9 Taiwan 2 1.4%
10 Latvia 2 1.4%
11 Philippines 2 1.4%
12 Hong Kong 1 0.7%
13 India 1 0.7%
14 United Kingdom 1 0.7%