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 78 34.5%
2 United States 62 27.4%
3 Netherlands 25 11.1%
4 Germany 24 10.6%
5 Russia 13 5.8%
6 Korea, Republic of 8 3.5%
7 France 3 1.3%
8 Norway 3 1.3%
9 Senegal 2 0.9%
10 Brazil 2 0.9%
11 Canada 1 0.4%
12 Dominican Republic 1 0.4%
13 Ireland 1 0.4%
14 Sweden 1 0.4%
15 Switzerland 1 0.4%
16 Romania 1 0.4%