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 United States 104 51.7%
2 China 47 23.4%
3 Germany 21 10.4%
4 France 8 4%
5 United Kingdom 8 4%
6 Singapore 3 1.5%
7 Hong Kong 3 1.5%
8 Czech Republic 2 1%
9 Estonia 1 0.5%
10 Australia 1 0.5%
11 Iran, Islamic Republic of 1 0.5%
12 Malaysia 1 0.5%
13 Taiwan 1 0.5%