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 64 35.8%
2 United States 55 30.7%
3 Germany 21 11.7%
4 Korea, Republic of 11 6.1%
5 Philippines 6 3.4%
6 Togo 6 3.4%
7 Senegal 4 2.2%
8 Singapore 2 1.1%
9 Hong Kong 2 1.1%
10 India 2 1.1%
11 France 2 1.1%
12 Brazil 2 1.1%
13 Ukraine 1 0.6%
14 Italy 1 0.6%