BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 United States 78 34.1%
2 China 76 33.2%
3 Germany 28 12.2%
4 Netherlands 13 5.7%
5 Czech Republic 5 2.2%
6 France 5 2.2%
7 United Kingdom 5 2.2%
8 Japan 4 1.7%
9 Korea, Republic of 4 1.7%
10 Russia 3 1.3%
11 New Zealand 2 0.9%
12 India 2 0.9%
13 Finland 1 0.4%
14 Philippines 1 0.4%
15 Sweden 1 0.4%
16 Ukraine 1 0.4%