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 22 31%
2 United States 19 26.8%
3 Netherlands 10 14.1%
4 Canada 7 9.9%
5 Taiwan 4 5.6%
6 Hong Kong 4 5.6%
7 Norway 2 2.8%
8 Ireland 1 1.4%
9 Czech Republic 1 1.4%
10 Germany 1 1.4%