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 36 36.4%
2 Netherlands 18 18.2%
3 Germany 16 16.2%
4 United States 15 15.2%
5 France 5 5.1%
6 Canada 3 3%
7 Hong Kong 3 3%
8 Sweden 1 1%
9 Switzerland 1 1%
10 Czech Republic 1 1%