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 170 41.5%
2 China 167 40.7%
3 Germany 35 8.5%
4 Canada 7 1.7%
5 Singapore 6 1.5%
6 Malaysia 5 1.2%
7 Hong Kong 5 1.2%
8 Australia 4 1%
9 Finland 2 0.5%
10 Japan 2 0.5%
11 United Kingdom 2 0.5%
12 Uzbekistan 2 0.5%
13 Spain 1 0.2%
14 Turkey 1 0.2%
15 Kenya 1 0.2%