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 95 57.6%
2 United States 31 18.8%
3 Germany 14 8.5%
4 Canada 7 4.2%
5 Singapore 4 2.4%
6 United Kingdom 3 1.8%
7 Hong Kong 3 1.8%
8 Netherlands 2 1.2%
9 Norway 2 1.2%
10 Portugal 1 0.6%
11 Japan 1 0.6%
12 Bangladesh 1 0.6%
13 Estonia 1 0.6%