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 16 36.4%
2 China 12 27.3%
3 Switzerland 3 6.8%
4 Australia 2 4.5%
5 Japan 2 4.5%
6 Malaysia 2 4.5%
7 Singapore 2 4.5%
8 Spain 1 2.3%
9 Canada 1 2.3%
10 Germany 1 2.3%
11 Hong Kong 1 2.3%
12 United Kingdom 1 2.3%