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 Germany 51 39.2%
2 China 27 20.8%
3 United States 16 12.3%
4 Netherlands 15 11.5%
5 Russia 4 3.1%
6 Singapore 4 3.1%
7 Switzerland 2 1.5%
8 France 2 1.5%
9 New Zealand 2 1.5%
10 Portugal 2 1.5%
11 United Kingdom 2 1.5%
12 Canada 1 0.8%
13 Japan 1 0.8%
14 Ukraine 1 0.8%