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 183 55%
2 Germany 55 16.5%
3 United States 40 12%
4 Netherlands 34 10.2%
5 United Kingdom 6 1.8%
6 Korea, Republic of 2 0.6%
7 Malaysia 2 0.6%
8 Russia 2 0.6%
9 Singapore 2 0.6%
10 Sweden 2 0.6%
11 Canada 2 0.6%
12 Brazil 1 0.3%
13 Finland 1 0.3%
14 France 1 0.3%