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 207 76.7%
2 United States 20 7.4%
3 Germany 18 6.7%
4 United Kingdom 9 3.3%
5 Taiwan 7 2.6%
6 Hong Kong 4 1.5%
7 India 1 0.4%
8 Malaysia 1 0.4%
9 Netherlands 1 0.4%
10 Portugal 1 0.4%
11 Switzerland 1 0.4%