BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 China 73 76%
2 United States 6 6.2%
3 Canada 5 5.2%
4 United Kingdom 3 3.1%
5 Japan 2 2.1%
6 Russia 2 2.1%
7 Germany 2 2.1%
8 Hong Kong 1 1%
9 Chile 1 1%
10 Switzerland 1 1%