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 61 38.6%
2 China 49 31%
3 Netherlands 17 10.8%
4 Canada 12 7.6%
5 Germany 5 3.2%
6 Sweden 5 3.2%
7 Nigeria 2 1.3%
8 Singapore 2 1.3%
9 Hong Kong 1 0.6%
10 Australia 1 0.6%
11 Czech Republic 1 0.6%
12 Thailand 1 0.6%
13 United Kingdom 1 0.6%