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 161 52.1%
2 United States 66 21.4%
3 Germany 32 10.4%
4 Netherlands 18 5.8%
5 Canada 12 3.9%
6 Hong Kong 9 2.9%
7 Singapore 4 1.3%
8 Brazil 3 1%
9 Finland 2 0.6%
10 Taiwan 1 0.3%
11 United Kingdom 1 0.3%