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 China 59 41.5%
2 United States 29 20.4%
3 Netherlands 17 12%
4 Germany 15 10.6%
5 Hong Kong 6 4.2%
6 Portugal 5 3.5%
7 3 2.1%
8 Senegal 3 2.1%
9 Taiwan 1 0.7%
10 United Kingdom 1 0.7%
11 Canada 1 0.7%
12 Russia 1 0.7%
13 Malaysia 1 0.7%