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 28 34.1%
2 United States 26 31.7%
3 Germany 11 13.4%
4 Hong Kong 4 4.9%
5 Singapore 4 4.9%
6 Nigeria 2 2.4%
7 Canada 2 2.4%
8 United Kingdom 2 2.4%
9 Portugal 1 1.2%
10 South Africa 1 1.2%
11 Korea, Republic of 1 1.2%