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 China 72 43.9%
2 United States 37 22.6%
3 Germany 17 10.4%
4 Netherlands 11 6.7%
5 Russia 8 4.9%
6 Portugal 5 3%
7 Hong Kong 5 3%
8 Senegal 3 1.8%
9 Canada 2 1.2%
10 Korea, Republic of 2 1.2%
11 India 1 0.6%
12 Finland 1 0.6%