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 79 44.9%
2 China 25 14.2%
3 Netherlands 17 9.7%
4 Russia 16 9.1%
5 Canada 12 6.8%
6 Indonesia 6 3.4%
7 France 5 2.8%
8 Korea, Republic of 3 1.7%
9 United Kingdom 3 1.7%
10 Moldova, Republic of 2 1.1%
11 Ireland 2 1.1%
12 Brazil 2 1.1%
13 Finland 1 0.6%
14 Germany 1 0.6%
15 Mexico 1 0.6%
16 Sweden 1 0.6%