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 59.7%
2 United States 44 15.2%
3 Germany 37 12.8%
4 Canada 17 5.9%
5 Netherlands 4 1.4%
6 United Arab Emirates 3 1%
7 United Kingdom 3 1%
8 Hong Kong 3 1%
9 Ireland 2 0.7%
10 Czech Republic 2 0.7%
11 Singapore 2 0.7%