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 36 35.3%
2 United States 33 32.4%
3 Netherlands 13 12.7%
4 Germany 11 10.8%
5 Hong Kong 3 2.9%
6 France 2 2%
7 Norway 1 1%
8 Turkey 1 1%
9 United Kingdom 1 1%
10 Canada 1 1%