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 425 66.6%
2 United States 74 11.6%
3 Germany 48 7.5%
4 Netherlands 27 4.2%
5 Sweden 14 2.2%
6 Canada 13 2%
7 Hong Kong 8 1.3%
8 Ireland 7 1.1%
9 Russia 6 0.9%
10 United Kingdom 3 0.5%
11 France 3 0.5%
12 Japan 2 0.3%
13 Viet Nam 2 0.3%
14 Ukraine 2 0.3%
15 Romania 2 0.3%
16 Korea, Republic of 1 0.2%
17 Brazil 1 0.2%