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 15 33.3%
2 Netherlands 14 31.1%
3 United States 6 13.3%
4 Hong Kong 3 6.7%
5 India 2 4.4%
6 Taiwan 2 4.4%
7 Poland 1 2.2%
8 Singapore 1 2.2%
9 Iran, Islamic Republic of 1 2.2%