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 32 25%
2 China 28 21.9%
3 Netherlands 24 18.8%
4 Denmark 15 11.7%
5 Germany 8 6.2%
6 France 3 2.3%
7 Canada 3 2.3%
8 Morocco 3 2.3%
9 Spain 2 1.6%
10 Turkey 2 1.6%
11 Ukraine 2 1.6%
12 United Arab Emirates 2 1.6%
13 United Kingdom 2 1.6%
14 Singapore 1 0.8%
15 Japan 1 0.8%