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 151 49.7%
2 United States 55 18.1%
3 Germany 35 11.5%
4 Canada 30 9.9%
5 Netherlands 10 3.3%
6 Hong Kong 5 1.6%
7 Singapore 3 1%
8 Thailand 3 1%
9 United Kingdom 2 0.7%
10 Nigeria 2 0.7%
11 Russia 2 0.7%
12 Saudi Arabia 2 0.7%
13 Luxembourg 1 0.3%
14 Mexico 1 0.3%
15 Brazil 1 0.3%
16 Czech Republic 1 0.3%