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 183 60.8%
2 United States 50 16.6%
3 Germany 32 10.6%
4 Canada 19 6.3%
5 Hong Kong 9 3%
6 United Kingdom 2 0.7%
7 Singapore 2 0.7%
8 Taiwan 1 0.3%
9 Ireland 1 0.3%
10 Korea, Republic of 1 0.3%
11 Macao 1 0.3%