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 72 37.3%
2 United States 49 25.4%
3 Netherlands 22 11.4%
4 Germany 15 7.8%
5 United Kingdom 9 4.7%
6 Japan 8 4.1%
7 Hong Kong 6 3.1%
8 Canada 5 2.6%
9 Taiwan 4 2.1%
10 Italy 1 0.5%
11 Malaysia 1 0.5%
12 Portugal 1 0.5%