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 71 41%
2 United States 43 24.9%
3 Netherlands 10 5.8%
4 Sweden 10 5.8%
5 Cote D'ivoire 10 5.8%
6 Germany 9 5.2%
7 Korea, Republic of 9 5.2%
8 Canada 3 1.7%
9 United Kingdom 2 1.2%
10 Hong Kong 2 1.2%
11 Denmark 2 1.2%
12 France 1 0.6%
13 Moldova, Republic of 1 0.6%