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 53 39.8%
2 Germany 27 20.3%
3 China 15 11.3%
4 India 5 3.8%
5 Netherlands 5 3.8%
6 France 5 3.8%
7 Canada 4 3%
8 Poland 3 2.3%
9 Egypt 2 1.5%
10 Bulgaria 2 1.5%
11 Brazil 1 0.8%
12 Dominican Republic 1 0.8%
13 Indonesia 1 0.8%
14 Iran, Islamic Republic of 1 0.8%
15 Israel 1 0.8%
16 Kyrgyzstan 1 0.8%
17 Viet Nam 1 0.8%
18 Russia 1 0.8%
19 Saudi Arabia 1 0.8%
20 Senegal 1 0.8%
21 Serbia 1 0.8%
22 United Kingdom 1 0.8%