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 174 54.9%
2 United States 49 15.5%
3 Germany 25 7.9%
4 Hong Kong 25 7.9%
5 Russia 8 2.5%
6 Singapore 8 2.5%
7 United Kingdom 6 1.9%
8 Malaysia 5 1.6%
9 Denmark 3 0.9%
10 Canada 3 0.9%
11 Turkey 3 0.9%
12 Netherlands 2 0.6%
13 Japan 2 0.6%
14 Romania 1 0.3%
15 Finland 1 0.3%
16 Austria 1 0.3%
17 Belarus 1 0.3%