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 27 27.6%
2 Netherlands 22 22.4%
3 United States 14 14.3%
4 Germany 12 12.2%
5 France 7 7.1%
6 5 5.1%
7 Czech Republic 2 2%
8 Hong Kong 2 2%
9 Korea, Republic of 2 2%
10 Taiwan 2 2%
11 United Kingdom 1 1%
12 Sweden 1 1%
13 Canada 1 1%