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 38 44.7%
2 United States 25 29.4%
3 Germany 7 8.2%
4 Hong Kong 4 4.7%
5 United Kingdom 3 3.5%
6 Russia 2 2.4%
7 Taiwan 2 2.4%
8 Australia 1 1.2%
9 Sweden 1 1.2%
10 Malaysia 1 1.2%
11 Portugal 1 1.2%