BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 United States 63 37.5%
2 China 60 35.7%
3 Germany 21 12.5%
4 France 6 3.6%
5 India 4 2.4%
6 Senegal 3 1.8%
7 Korea, Republic of 3 1.8%
8 Moldova, Republic of 2 1.2%
9 Japan 2 1.2%
10 Hong Kong 2 1.2%
11 Ghana 1 0.6%
12 Cyprus 1 0.6%