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 64 38.8%
2 United States 52 31.5%
3 Netherlands 26 15.8%
4 Germany 7 4.2%
5 Hong Kong 4 2.4%
6 Nigeria 4 2.4%
7 2 1.2%
8 United Kingdom 2 1.2%
9 Portugal 1 0.6%
10 Sweden 1 0.6%
11 India 1 0.6%
12 France 1 0.6%