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 171 58%
2 United States 48 16.3%
3 Germany 35 11.9%
4 Canada 21 7.1%
5 Russia 5 1.7%
6 Singapore 3 1%
7 Hong Kong 3 1%
8 Moldova, Republic of 2 0.7%
9 Seychelles 2 0.7%
10 Ukraine 2 0.7%
11 United Kingdom 2 0.7%
12 Turkey 1 0.3%