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 193 52.6%
2 United States 55 15%
3 Canada 37 10.1%
4 Netherlands 35 9.5%
5 Germany 35 9.5%
6 Hong Kong 5 1.4%
7 Iran, Islamic Republic of 3 0.8%
8 Mauritius 2 0.5%
9 France 2 0.5%