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 70 44.3%
2 United States 43 27.2%
3 Germany 14 8.9%
4 Netherlands 13 8.2%
5 Senegal 5 3.2%
6 Canada 3 1.9%
7 Hong Kong 2 1.3%
8 Japan 2 1.3%
9 Moldova, Republic of 1 0.6%
10 1 0.6%
11 Finland 1 0.6%
12 France 1 0.6%
13 Taiwan 1 0.6%
14 Portugal 1 0.6%