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 67 33.3%
2 United States 61 30.3%
3 Netherlands 25 12.4%
4 Sweden 12 6%
5 Cote D'ivoire 10 5%
6 Germany 9 4.5%
7 Hong Kong 4 2%
8 Norway 3 1.5%
9 Belgium 3 1.5%
10 Korea, Republic of 2 1%
11 Romania 2 1%
12 United Kingdom 2 1%
13 India 1 0.5%