BPG致力于知识的发现和传播
Total Visits of This Article
2021 | 总访问次数
排名 国家/地区 数量 占比
1 China 194 56.7%
2 United States 50 14.6%
3 Germany 31 9.1%
4 Colombia 12 3.5%
5 Austria 11 3.2%
6 Canada 11 3.2%
7 Malaysia 9 2.6%
8 Taiwan 8 2.3%
9 Netherlands 4 1.2%
10 Serbia 2 0.6%
11 Singapore 2 0.6%
12 Switzerland 2 0.6%
13 Hong Kong 2 0.6%
14 Korea, Republic of 2 0.6%
15 Luxembourg 1 0.3%
16 Russia 1 0.3%