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 184 55.4%
2 United States 57 17.2%
3 Germany 45 13.6%
4 Taiwan 18 5.4%
5 Hong Kong 7 2.1%
6 Ukraine 5 1.5%
7 Russia 3 0.9%
8 Japan 3 0.9%
9 Canada 3 0.9%
10 Finland 2 0.6%
11 Singapore 2 0.6%
12 United Kingdom 1 0.3%
13 Australia 1 0.3%
14 Malaysia 1 0.3%