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 208 51.5%
2 United States 109 27%
3 Germany 33 8.2%
4 Canada 23 5.7%
5 Netherlands 7 1.7%
6 Hong Kong 4 1%
7 4 1%
8 Turkey 4 1%
9 Malaysia 3 0.7%
10 Sweden 3 0.7%
11 United Kingdom 2 0.5%
12 Russia 2 0.5%
13 Japan 1 0.2%
14 Czech Republic 1 0.2%