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 167 60.3%
2 United States 50 18.1%
3 Germany 38 13.7%
4 Netherlands 9 3.2%
5 Canada 4 1.4%
6 Brazil 2 0.7%
7 Hong Kong 2 0.7%
8 Ireland 2 0.7%
9 Russia 1 0.4%
10 Switzerland 1 0.4%
11 Finland 1 0.4%