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 84 53.8%
2 United States 43 27.6%
3 Netherlands 8 5.1%
4 Germany 6 3.8%
5 France 4 2.6%
6 Romania 2 1.3%
7 Russia 2 1.3%
8 United Kingdom 2 1.3%
9 India 2 1.3%
10 Canada 1 0.6%
11 Colombia 1 0.6%
12 Finland 1 0.6%