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 165 64.7%
2 United States 62 24.3%
3 Taiwan 7 2.7%
4 United Kingdom 5 2%
5 Korea, Republic of 3 1.2%
6 Russia 3 1.2%
7 Singapore 3 1.2%
8 Canada 3 1.2%
9 France 2 0.8%
10 Hong Kong 1 0.4%
11 Sweden 1 0.4%