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 China 31 34.4%
2 United States 20 22.2%
3 Netherlands 10 11.1%
4 Hong Kong 8 8.9%
5 Canada 6 6.7%
6 Germany 4 4.4%
7 Czech Republic 2 2.2%
8 Japan 2 2.2%
9 Malaysia 2 2.2%
10 Sweden 2 2.2%
11 Turkey 2 2.2%
12 Taiwan 1 1.1%