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 158 54.3%
2 United States 55 18.9%
3 Germany 34 11.7%
4 Hong Kong 14 4.8%
5 Japan 6 2.1%
6 Canada 6 2.1%
7 Taiwan 4 1.4%
8 United Kingdom 2 0.7%
9 Russia 2 0.7%
10 Singapore 2 0.7%
11 Norway 2 0.7%
12 Georgia 2 0.7%
13 Australia 2 0.7%
14 Brazil 1 0.3%
15 Portugal 1 0.3%