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 United States 51 53.1%
2 China 24 25%
3 Germany 3 3.1%
4 Hong Kong 3 3.1%
5 Denmark 3 3.1%
6 Singapore 2 2.1%
7 Czech Republic 2 2.1%
8 Canada 2 2.1%
9 Australia 1 1%
10 Netherlands 1 1%
11 Norway 1 1%
12 Taiwan 1 1%
13 Finland 1 1%
14 France 1 1%