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 37 40.7%
2 United States 17 18.7%
3 Netherlands 12 13.2%
4 Germany 9 9.9%
5 France 7 7.7%
6 Japan 3 3.3%
7 Canada 2 2.2%
8 India 2 2.2%
9 Poland 1 1.1%
10 Czech Republic 1 1.1%