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 399 52.4%
2 United States 176 23.1%
3 Netherlands 88 11.6%
4 Germany 46 6%
5 Canada 33 4.3%
6 Singapore 5 0.7%
7 Hong Kong 5 0.7%
8 France 4 0.5%
9 Australia 2 0.3%
10 Sweden 2 0.3%
11 United Kingdom 1 0.1%