BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 China 54 38%
2 United States 23 16.2%
3 Netherlands 20 14.1%
4 Germany 14 9.9%
5 France 12 8.5%
6 9 6.3%
7 Canada 3 2.1%
8 Czech Republic 3 2.1%
9 Sweden 1 0.7%
10 Switzerland 1 0.7%
11 Taiwan 1 0.7%
12 Korea, Republic of 1 0.7%