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 175 55.4%
2 United States 50 15.8%
3 Germany 32 10.1%
4 Netherlands 24 7.6%
5 Hong Kong 9 2.8%
6 Russia 6 1.9%
7 Sweden 4 1.3%
8 Taiwan 3 0.9%
9 United Kingdom 3 0.9%
10 Romania 3 0.9%
11 India 2 0.6%
12 Japan 2 0.6%
13 Australia 2 0.6%
14 Estonia 1 0.3%