BPG致力于知识的发现和传播
Total Visits of This Article
2021 | 总访问次数
排名 国家/地区 数量 占比
1 United States 22 31.9%
2 Netherlands 16 23.2%
3 China 11 15.9%
4 Japan 5 7.2%
5 Hong Kong 3 4.3%
6 Canada 3 4.3%
7 Germany 2 2.9%
8 Malaysia 2 2.9%
9 United Kingdom 2 2.9%
10 Taiwan 1 1.4%
11 Australia 1 1.4%
12 Czech Republic 1 1.4%