BPG致力于知识的发现和传播
Total Visits of This Article
2022 | 总访问次数
排名 国家/地区 数量 占比
1 China 57 54.3%
2 Netherlands 16 15.2%
3 United States 16 15.2%
4 Sweden 6 5.7%
5 Germany 5 4.8%
6 Russia 2 1.9%
7 Canada 1 1%
8 Hong Kong 1 1%
9 Korea, Republic of 1 1%