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 56 44.1%
2 United States 35 27.6%
3 Netherlands 15 11.8%
4 Germany 7 5.5%
5 Hong Kong 3 2.4%
6 3 2.4%
7 Taiwan 2 1.6%
8 France 2 1.6%
9 Portugal 1 0.8%
10 Russia 1 0.8%
11 Sweden 1 0.8%
12 United Kingdom 1 0.8%