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 159 56.4%
2 Germany 47 16.7%
3 United States 46 16.3%
4 Ireland 10 3.5%
5 United Kingdom 5 1.8%
6 Singapore 3 1.1%
7 2 0.7%
8 Russia 2 0.7%
9 Malaysia 2 0.7%
10 Netherlands 2 0.7%
11 Norway 2 0.7%
12 Poland 1 0.4%
13 Uzbekistan 1 0.4%