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 45 29%
2 China 36 23.2%
3 Netherlands 35 22.6%
4 Germany 11 7.1%
5 France 9 5.8%
6 Korea, Republic of 4 2.6%
7 Hong Kong 3 1.9%
8 Indonesia 3 1.9%
9 United Kingdom 3 1.9%
10 Israel 2 1.3%
11 Czech Republic 2 1.3%
12 Estonia 2 1.3%