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 56 62.9%
2 China 9 10.1%
3 Netherlands 5 5.6%
4 France 4 4.5%
5 Germany 3 3.4%
6 Austria 3 3.4%
7 Japan 3 3.4%
8 Canada 2 2.2%
9 India 2 2.2%
10 Italy 1 1.1%
11 Hong Kong 1 1.1%