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 China 47 41.2%
2 United States 28 24.6%
3 Netherlands 14 12.3%
4 Germany 7 6.1%
5 Hong Kong 6 5.3%
6 Taiwan 3 2.6%
7 India 2 1.8%
8 Japan 2 1.8%
9 Portugal 1 0.9%
10 Russia 1 0.9%
11 Sweden 1 0.9%
12 United Kingdom 1 0.9%
13 France 1 0.9%