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 18 31%
2 Hong Kong 13 22.4%
3 United States 11 19%
4 Netherlands 4 6.9%
5 Russia 3 5.2%
6 Germany 3 5.2%
7 Canada 2 3.4%
8 India 2 3.4%
9 Switzerland 1 1.7%
10 France 1 1.7%