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 39 39.4%
2 United States 19 19.2%
3 Germany 16 16.2%
4 France 7 7.1%
5 Canada 6 6.1%
6 Netherlands 6 6.1%
7 Malaysia 2 2%
8 Czech Republic 2 2%
9 Pakistan 1 1%
10 Sweden 1 1%