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 51.5%
2 United States 22 13.3%
3 Netherlands 21 12.7%
4 France 18 10.9%
5 Russia 6 3.6%
6 Germany 5 3%
7 Viet Nam 2 1.2%
8 2 1.2%
9 India 1 0.6%
10 Ireland 1 0.6%
11 Mexico 1 0.6%
12 Czech Republic 1 0.6%