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 164 43.6%
2 United States 125 33.2%
3 Germany 34 9%
4 Sweden 13 3.5%
5 Canada 12 3.2%
6 Netherlands 9 2.4%
7 Hong Kong 4 1.1%
8 United Kingdom 4 1.1%
9 Brazil 3 0.8%
10 2 0.5%
11 Australia 2 0.5%
12 Russia 2 0.5%
13 Singapore 2 0.5%