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 67 60.9%
2 United States 19 17.3%
3 Germany 5 4.5%
4 Armenia 4 3.6%
5 Australia 3 2.7%
6 Brazil 3 2.7%
7 United Kingdom 3 2.7%
8 Canada 2 1.8%
9 Hong Kong 2 1.8%
10 Romania 1 0.9%
11 Singapore 1 0.9%