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 15 33.3%
2 China 10 22.2%
3 Canada 9 20%
4 Netherlands 4 8.9%
5 Germany 2 4.4%
6 Hong Kong 2 4.4%
7 Sweden 1 2.2%
8 Australia 1 2.2%
9 France 1 2.2%