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 353 70.6%
2 United States 52 10.4%
3 Germany 39 7.8%
4 Canada 31 6.2%
5 Hong Kong 7 1.4%
6 Taiwan 6 1.2%
7 Macao 3 0.6%
8 Malaysia 3 0.6%
9 Netherlands 3 0.6%
10 Switzerland 2 0.4%
11 Sweden 1 0.2%