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 80 35.7%
2 United States 66 29.5%
3 Germany 22 9.8%
4 Korea, Republic of 17 7.6%
5 Senegal 10 4.5%
6 Netherlands 8 3.6%
7 France 5 2.2%
8 Greece 4 1.8%
9 Russia 4 1.8%
10 Norway 2 0.9%
11 Malaysia 2 0.9%
12 Philippines 1 0.4%
13 India 1 0.4%
14 Sweden 1 0.4%
15 Switzerland 1 0.4%