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 85 45.9%
2 United States 41 22.2%
3 Netherlands 21 11.4%
4 Korea, Republic of 9 4.9%
5 France 6 3.2%
6 Senegal 6 3.2%
7 Canada 4 2.2%
8 Taiwan 4 2.2%
9 Germany 2 1.1%
10 Colombia 2 1.1%
11 Moldova, Republic of 2 1.1%
12 Russia 2 1.1%
13 Sweden 1 0.5%