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 119 41%
2 China 76 26.2%
3 Germany 25 8.6%
4 Japan 19 6.6%
5 Netherlands 18 6.2%
6 France 11 3.8%
7 Korea, Republic of 6 2.1%
8 United Kingdom 4 1.4%
9 Singapore 2 0.7%
10 India 2 0.7%
11 Norway 2 0.7%
12 Philippines 1 0.3%
13 Russia 1 0.3%
14 Sweden 1 0.3%
15 Switzerland 1 0.3%
16 Togo 1 0.3%
17 Ukraine 1 0.3%