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 United States 41 40.6%
2 China 28 27.7%
3 Russia 5 5%
4 Taiwan 5 5%
5 France 4 4%
6 Germany 3 3%
7 Hong Kong 3 3%
8 United Kingdom 3 3%
9 Malaysia 2 2%
10 Poland 1 1%
11 Estonia 1 1%
12 Japan 1 1%
13 Canada 1 1%
14 Ukraine 1 1%
15 Singapore 1 1%
16 Sweden 1 1%