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 196 40.5%
2 China 111 22.9%
3 Netherlands 62 12.8%
4 Germany 55 11.4%
5 France 21 4.3%
6 Hong Kong 10 2.1%
7 Canada 8 1.7%
8 Portugal 7 1.4%
9 4 0.8%
10 Norway 3 0.6%
11 Russia 1 0.2%
12 Taiwan 1 0.2%
13 Trinidad and Tobago 1 0.2%
14 Ukraine 1 0.2%
15 Finland 1 0.2%
16 Iran, Islamic Republic of 1 0.2%
17 Ireland 1 0.2%