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 United States 33 37.1%
2 China 17 19.1%
3 Germany 16 18%
4 Canada 12 13.5%
5 Hong Kong 2 2.2%
6 France 2 2.2%
7 Russia 2 2.2%
8 United Kingdom 1 1.1%
9 Iran, Islamic Republic of 1 1.1%
10 Malaysia 1 1.1%
11 Moldova, Republic of 1 1.1%
12 Nepal 1 1.1%