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 181 59.3%
2 United States 56 18.4%
3 Canada 28 9.2%
4 Germany 24 7.9%
5 France 3 1%
6 Netherlands 3 1%
7 Russia 2 0.7%
8 Singapore 2 0.7%
9 Sweden 2 0.7%
10 Hong Kong 2 0.7%
11 Mauritius 1 0.3%
12 Czech Republic 1 0.3%