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 122 57.5%
2 United States 36 17%
3 Germany 29 13.7%
4 Russia 7 3.3%
5 Latvia 3 1.4%
6 Hong Kong 3 1.4%
7 United Kingdom 3 1.4%
8 Taiwan 2 0.9%
9 Korea, Republic of 2 0.9%
10 Czech Republic 2 0.9%
11 Netherlands 2 0.9%
12 Switzerland 1 0.5%