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 181 53.1%
2 United States 57 16.7%
3 Germany 30 8.8%
4 Netherlands 27 7.9%
5 Canada 23 6.7%
6 Russia 9 2.6%
7 Singapore 4 1.2%
8 Hong Kong 3 0.9%
9 Korea, Republic of 2 0.6%
10 Luxembourg 2 0.6%
11 Taiwan 2 0.6%
12 Austria 1 0.3%