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 United States 38 41.8%
2 China 34 37.4%
3 Germany 7 7.7%
4 Canada 3 3.3%
5 Hong Kong 2 2.2%
6 Italy 2 2.2%
7 Netherlands 1 1.1%
8 United Kingdom 1 1.1%
9 France 1 1.1%
10 Australia 1 1.1%
11 Bosnia and Herzegovina 1 1.1%