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 90 65.2%
2 United States 20 14.5%
3 Netherlands 14 10.1%
4 Canada 3 2.2%
5 Germany 3 2.2%
6 Hong Kong 3 2.2%
7 France 2 1.4%
8 Singapore 2 1.4%
9 Switzerland 1 0.7%