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 24 51.1%
2 Netherlands 7 14.9%
3 United States 7 14.9%
4 Korea, Republic of 2 4.3%
5 Germany 2 4.3%
6 Hong Kong 1 2.1%
7 Japan 1 2.1%
8 France 1 2.1%
9 Canada 1 2.1%
10 Taiwan 1 2.1%