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 41 42.3%
2 United States 24 24.7%
3 Netherlands 12 12.4%
4 Korea, Republic of 7 7.2%
5 Australia 4 4.1%
6 Singapore 3 3.1%
7 Hong Kong 2 2.1%
8 Austria 2 2.1%
9 Germany 1 1%
10 Italy 1 1%