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 91 57.2%
2 United States 39 24.5%
3 Germany 9 5.7%
4 Hong Kong 7 4.4%
5 France 4 2.5%
6 Russia 2 1.3%
7 Singapore 2 1.3%
8 Spain 1 0.6%
9 United Kingdom 1 0.6%
10 Iran, Islamic Republic of 1 0.6%
11 Portugal 1 0.6%
12 Egypt 1 0.6%