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 159 42.4%
2 United States 140 37.3%
3 Germany 39 10.4%
4 Singapore 8 2.1%
5 United Kingdom 8 2.1%
6 Canada 6 1.6%
7 Italy 4 1.1%
8 Australia 4 1.1%
9 2 0.5%
10 Hong Kong 2 0.5%
11 Japan 2 0.5%
12 Macao 1 0.3%