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 28 30.8%
2 China 24 26.4%
3 Netherlands 13 14.3%
4 Germany 12 13.2%
5 Russia 4 4.4%
6 France 4 4.4%
7 Canada 3 3.3%
8 Czech Republic 1 1.1%
9 Hong Kong 1 1.1%
10 India 1 1.1%