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 113 62.4%
2 United States 24 13.3%
3 Germany 9 5%
4 Canada 8 4.4%
5 Hong Kong 7 3.9%
6 Portugal 5 2.8%
7 Taiwan 5 2.8%
8 4 2.2%
9 Senegal 2 1.1%
10 United Kingdom 1 0.6%
11 Australia 1 0.6%
12 Estonia 1 0.6%
13 Russia 1 0.6%