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 241 60.9%
2 United States 54 13.6%
3 Germany 48 12.1%
4 Canada 19 4.8%
5 Hong Kong 9 2.3%
6 Netherlands 6 1.5%
7 Russia 6 1.5%
8 Singapore 4 1%
9 United Kingdom 2 0.5%
10 Japan 2 0.5%
11 Malaysia 2 0.5%
12 Uzbekistan 2 0.5%
13 Brazil 1 0.3%