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 57 36.5%
2 China 35 22.4%
3 Germany 19 12.2%
4 Sweden 16 10.3%
5 Netherlands 12 7.7%
6 Korea, Republic of 8 5.1%
7 Singapore 4 2.6%
8 Canada 3 1.9%
9 Moldova, Republic of 1 0.6%
10 Japan 1 0.6%