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 176 51.8%
2 Germany 50 14.7%
3 United States 48 14.1%
4 Netherlands 30 8.8%
5 Taiwan 11 3.2%
6 Hong Kong 7 2.1%
7 Singapore 5 1.5%
8 Italy 4 1.2%
9 Japan 2 0.6%
10 Korea, Republic of 2 0.6%
11 Canada 2 0.6%
12 United Kingdom 1 0.3%
13 Romania 1 0.3%
14 India 1 0.3%