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 59 65.6%
2 United States 12 13.3%
3 Germany 6 6.7%
4 Taiwan 4 4.4%
5 Hong Kong 3 3.3%
6 Netherlands 1 1.1%
7 Portugal 1 1.1%
8 France 1 1.1%
9 1 1.1%
10 Canada 1 1.1%
11 United Kingdom 1 1.1%