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 241 69.3%
2 United States 51 14.7%
3 Germany 32 9.2%
4 Hong Kong 6 1.7%
5 Japan 5 1.4%
6 Russia 3 0.9%
7 Australia 3 0.9%
8 Brazil 2 0.6%
9 Canada 2 0.6%
10 United Kingdom 2 0.6%
11 Czech Republic 1 0.3%