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 54 56.2%
2 United States 23 24%
3 Germany 7 7.3%
4 Hong Kong 5 5.2%
5 Taiwan 2 2.1%
6 United Kingdom 1 1%
7 Korea, Republic of 1 1%
8 Macao 1 1%
9 Nigeria 1 1%
10 Portugal 1 1%