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 43 29.3%
2 China 38 25.9%
3 Netherlands 26 17.7%
4 Germany 11 7.5%
5 Canada 10 6.8%
6 Taiwan 4 2.7%
7 Hong Kong 3 2%
8 Australia 3 2%
9 United Kingdom 2 1.4%
10 Malaysia 1 0.7%
11 1 0.7%
12 Cote D'ivoire 1 0.7%
13 France 1 0.7%
14 Philippines 1 0.7%
15 Portugal 1 0.7%
16 Singapore 1 0.7%