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 57 58.2%
2 United States 20 20.4%
3 Taiwan 5 5.1%
4 Germany 4 4.1%
5 Hong Kong 3 3.1%
6 Japan 2 2%
7 Korea, Republic of 2 2%
8 Canada 2 2%
9 United Kingdom 1 1%
10 Netherlands 1 1%
11 Singapore 1 1%