BPG致力于知识的发现和传播
Total Visits of This Article
2022 | 总访问次数
排名 国家/地区 数量 占比
1 United States 86 54.8%
2 China 45 28.7%
3 Netherlands 9 5.7%
4 Germany 6 3.8%
5 Korea, Republic of 3 1.9%
6 Sweden 2 1.3%
7 Czech Republic 2 1.3%
8 Canada 2 1.3%
9 Australia 1 0.6%
10 Hong Kong 1 0.6%