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 194 52%
2 United States 106 28.4%
3 Germany 42 11.3%
4 Netherlands 5 1.3%
5 Hong Kong 4 1.1%
6 Ireland 4 1.1%
7 Russia 3 0.8%
8 Canada 3 0.8%
9 Australia 2 0.5%
10 Korea, Republic of 2 0.5%
11 United Kingdom 2 0.5%
12 Sweden 2 0.5%
13 Taiwan 2 0.5%
14 Ukraine 1 0.3%
15 Singapore 1 0.3%