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 173 59.5%
2 Germany 50 17.2%
3 United States 44 15.1%
4 Hong Kong 9 3.1%
5 Netherlands 5 1.7%
6 Seychelles 2 0.7%
7 Brazil 2 0.7%
8 Canada 2 0.7%
9 Switzerland 2 0.7%
10 Ukraine 1 0.3%
11 Singapore 1 0.3%