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 86 54.4%
2 United States 45 28.5%
3 Netherlands 6 3.8%
4 Germany 6 3.8%
5 France 5 3.2%
6 Canada 2 1.3%
7 Hong Kong 2 1.3%
8 Italy 2 1.3%
9 Japan 1 0.6%
10 Australia 1 0.6%
11 Sweden 1 0.6%
12 Taiwan 1 0.6%