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 55 37.7%
2 United States 50 34.2%
3 Germany 15 10.3%
4 Hong Kong 8 5.5%
5 Korea, Republic of 6 4.1%
6 Taiwan 3 2.1%
7 Canada 3 2.1%
8 United Kingdom 2 1.4%
9 Malaysia 2 1.4%
10 Portugal 1 0.7%
11 Ireland 1 0.7%