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 200 60.8%
2 United States 58 17.6%
3 Germany 42 12.8%
4 Canada 13 4%
5 United Kingdom 6 1.8%
6 Russia 3 0.9%
7 Brazil 2 0.6%
8 Australia 1 0.3%
9 Finland 1 0.3%
10 France 1 0.3%
11 Singapore 1 0.3%
12 India 1 0.3%