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 32 38.6%
2 United States 25 30.1%
3 Germany 7 8.4%
4 Portugal 5 6%
5 Hong Kong 4 4.8%
6 Taiwan 3 3.6%
7 Russia 2 2.4%
8 2 2.4%
9 United Kingdom 1 1.2%
10 Iran, Islamic Republic of 1 1.2%
11 Netherlands 1 1.2%