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 186 59.2%
2 United States 53 16.9%
3 Germany 41 13.1%
4 Canada 14 4.5%
5 Hong Kong 4 1.3%
6 Singapore 4 1.3%
7 Russia 3 1%
8 Switzerland 2 0.6%
9 Turkey 2 0.6%
10 United Kingdom 2 0.6%
11 Moldova, Republic of 2 0.6%
12 Austria 1 0.3%