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 901 79.9%
2 United States 90 8%
3 Germany 30 2.7%
4 Netherlands 29 2.6%
5 Hong Kong 18 1.6%
6 Sweden 15 1.3%
7 Canada 12 1.1%
8 United Kingdom 7 0.6%
9 Russia 6 0.5%
10 Japan 5 0.4%
11 Taiwan 5 0.4%
12 Singapore 4 0.4%
13 Switzerland 2 0.2%
14 Ukraine 2 0.2%
15 Viet Nam 2 0.2%