BPG致力于知识的发现和传播
Total Visits of This Article
2021 | 总访问次数
排名 国家/地区 数量 占比
1 China 173 47.8%
2 United States 107 29.6%
3 Germany 43 11.9%
4 Canada 19 5.2%
5 Macao 4 1.1%
6 Taiwan 3 0.8%
7 Japan 3 0.8%
8 2 0.6%
9 United Kingdom 2 0.6%
10 Singapore 2 0.6%
11 Russia 1 0.3%
12 Brazil 1 0.3%
13 Hong Kong 1 0.3%
14 Ireland 1 0.3%