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 China 31 39.2%
2 United States 30 38%
3 Taiwan 6 7.6%
4 United Kingdom 2 2.5%
5 Germany 2 2.5%
6 Netherlands 2 2.5%
7 Singapore 1 1.3%
8 Japan 1 1.3%
9 France 1 1.3%
10 Belgium 1 1.3%
11 Brazil 1 1.3%
12 Canada 1 1.3%