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 42 38.2%
2 United States 29 26.4%
3 Netherlands 15 13.6%
4 Germany 10 9.1%
5 France 4 3.6%
6 Taiwan 3 2.7%
7 Canada 3 2.7%
8 Hong Kong 2 1.8%
9 Macao 1 0.9%
10 United Kingdom 1 0.9%