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 66 37.7%
2 United States 58 33.1%
3 France 12 6.9%
4 Sweden 9 5.1%
5 Korea, Republic of 8 4.6%
6 Senegal 7 4%
7 Netherlands 6 3.4%
8 India 3 1.7%
9 Germany 3 1.7%
10 Hong Kong 2 1.1%
11 Canada 1 0.6%