BPG致力于知识的发现和传播
Total Visits of This Article
2019 | 总访问次数
排名 国家/地区 数量 占比
1 174 49.9%
2 United States 72 20.6%
3 China 61 17.5%
4 Germany 12 3.4%
5 France 8 2.3%
6 Taiwan 3 0.9%
7 United Kingdom 3 0.9%
8 Norway 3 0.9%
9 Canada 3 0.9%
10 Czech Republic 2 0.6%
11 Portugal 2 0.6%
12 Switzerland 1 0.3%
13 Philippines 1 0.3%
14 Finland 1 0.3%
15 Hong Kong 1 0.3%
16 India 1 0.3%
17 Japan 1 0.3%