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 32 32.3%
2 United States 31 31.3%
3 Germany 13 13.1%
4 India 9 9.1%
5 Canada 5 5.1%
6 Hong Kong 3 3%
7 United Kingdom 2 2%
8 Ireland 1 1%
9 Portugal 1 1%
10 Russia 1 1%
11 Ukraine 1 1%