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 29 39.2%
2 United States 12 16.2%
3 Netherlands 9 12.2%
4 Canada 9 12.2%
5 Hong Kong 4 5.4%
6 Czech Republic 4 5.4%
7 Germany 3 4.1%
8 Singapore 3 4.1%
9 Nigeria 1 1.4%