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 50.6%
2 Sweden 39 16.2%
3 United States 35 14.5%
4 Hong Kong 15 6.2%
5 Germany 11 4.6%
6 Netherlands 5 2.1%
7 France 4 1.7%
8 Singapore 3 1.2%
9 Norway 2 0.8%
10 Philippines 2 0.8%
11 Korea, Republic of 1 0.4%
12 Macao 1 0.4%
13 Canada 1 0.4%