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 40 34.5%
2 China 28 24.1%
3 Korea, Republic of 12 10.3%
4 Netherlands 8 6.9%
5 Japan 6 5.2%
6 Hong Kong 4 3.4%
7 Singapore 4 3.4%
8 Australia 4 3.4%
9 Canada 3 2.6%
10 United Kingdom 3 2.6%
11 France 2 1.7%
12 Sweden 1 0.9%
13 Taiwan 1 0.9%