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 224 69.3%
2 United States 43 13.3%
3 Hong Kong 19 5.9%
4 Germany 11 3.4%
5 Japan 8 2.5%
6 Canada 4 1.2%
7 Sweden 4 1.2%
8 Taiwan 4 1.2%
9 Korea, Republic of 2 0.6%
10 Malaysia 1 0.3%
11 Portugal 1 0.3%
12 Italy 1 0.3%
13 United Kingdom 1 0.3%