BPG致力于知识的发现和传播
Total Visits of This Article
2022 | 总访问次数
排名 国家/地区 数量 占比
1 China 22 38.6%
2 Netherlands 11 19.3%
3 United States 9 15.8%
4 Korea, Republic of 7 12.3%
5 Russia 2 3.5%
6 United Kingdom 2 3.5%
7 Czech Republic 2 3.5%
8 France 1 1.8%
9 Hong Kong 1 1.8%