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 253 58.7%
2 United States 80 18.6%
3 Netherlands 40 9.3%
4 Germany 20 4.6%
5 Hong Kong 18 4.2%
6 Ukraine 4 0.9%
7 Singapore 3 0.7%
8 Taiwan 3 0.7%
9 Albania 2 0.5%
10 Japan 2 0.5%
11 United Kingdom 2 0.5%
12 Viet Nam 2 0.5%
13 Moldova, Republic of 1 0.2%
14 Sweden 1 0.2%