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 17 39.5%
2 United States 7 16.3%
3 Switzerland 6 14%
4 Germany 5 11.6%
5 Taiwan 3 7%
6 Australia 1 2.3%
7 Brazil 1 2.3%
8 Canada 1 2.3%
9 Hong Kong 1 2.3%
10 New Zealand 1 2.3%