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 United States 60 43.8%
2 China 52 38%
3 Germany 8 5.8%
4 Russia 4 2.9%
5 Taiwan 3 2.2%
6 Hong Kong 3 2.2%
7 United Kingdom 2 1.5%
8 Australia 1 0.7%
9 Iran, Islamic Republic of 1 0.7%
10 Japan 1 0.7%
11 Netherlands 1 0.7%
12 Portugal 1 0.7%