BPG致力于知识的发现和传播
Total Visits of This Article
2021 | 总访问次数
排名 国家/地区 数量 占比
1 China 252 70.6%
2 United States 44 12.3%
3 Germany 25 7%
4 Hong Kong 8 2.2%
5 United Kingdom 6 1.7%
6 Netherlands 4 1.1%
7 Russia 3 0.8%
8 Taiwan 3 0.8%
9 Thailand 2 0.6%
10 Singapore 2 0.6%
11 Japan 2 0.6%
12 Malaysia 2 0.6%
13 Mexico 2 0.6%
14 Iran, Islamic Republic of 1 0.3%
15 Brazil 1 0.3%