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 71 41.3%
2 United States 48 27.9%
3 Germany 14 8.1%
4 Hong Kong 11 6.4%
5 Portugal 5 2.9%
6 Senegal 4 2.3%
7 Canada 4 2.3%
8 Taiwan 4 2.3%
9 United Kingdom 3 1.7%
10 Russia 3 1.7%
11 Malaysia 3 1.7%
12 France 1 0.6%
13 Singapore 1 0.6%