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 38 39.2%
2 Netherlands 15 15.5%
3 United States 10 10.3%
4 Korea, Republic of 9 9.3%
5 France 9 9.3%
6 Germany 8 8.2%
7 Russia 4 4.1%
8 Hong Kong 2 2.1%
9 India 2 2.1%