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 22 29.7%
2 China 19 25.7%
3 Netherlands 10 13.5%
4 Germany 5 6.8%
5 Singapore 5 6.8%
6 France 4 5.4%
7 Canada 3 4.1%
8 Finland 3 4.1%
9 Hong Kong 1 1.4%
10 Malaysia 1 1.4%
11 Norway 1 1.4%