BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 China 34 42%
2 United States 21 25.9%
3 Canada 8 9.9%
4 Japan 4 4.9%
5 Singapore 3 3.7%
6 Hong Kong 3 3.7%
7 Sweden 2 2.5%
8 France 2 2.5%
9 Australia 1 1.2%
10 United Kingdom 1 1.2%
11 Korea, Republic of 1 1.2%
12 Netherlands 1 1.2%