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 United States 85 35.9%
2 China 75 31.6%
3 Germany 24 10.1%
4 Netherlands 12 5.1%
5 Australia 8 3.4%
6 Korea, Republic of 7 3%
7 Senegal 4 1.7%
8 Sweden 4 1.7%
9 Taiwan 4 1.7%
10 Ireland 4 1.7%
11 India 3 1.3%
12 Japan 2 0.8%
13 Romania 2 0.8%
14 Singapore 2 0.8%
15 Canada 1 0.4%