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 52 42.3%
2 United States 31 25.2%
3 United Kingdom 11 8.9%
4 Russia 7 5.7%
5 France 6 4.9%
6 Senegal 4 3.3%
7 Germany 3 2.4%
8 Netherlands 3 2.4%
9 Japan 2 1.6%
10 Moldova, Republic of 1 0.8%
11 Canada 1 0.8%
12 Estonia 1 0.8%
13 Ukraine 1 0.8%