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 539 71.9%
2 United States 134 17.9%
3 Germany 42 5.6%
4 Canada 12 1.6%
5 Taiwan 4 0.5%
6 United Kingdom 4 0.5%
7 Japan 3 0.4%
8 Netherlands 3 0.4%
9 Singapore 3 0.4%
10 Austria 2 0.3%
11 Ireland 2 0.3%
12 Hong Kong 1 0.1%
13 Macao 1 0.1%