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 United States 4551 97.5%
2 China 70 1.5%
3 Taiwan 18 0.4%
4 Hong Kong 11 0.2%
5 Germany 8 0.2%
6 Japan 3 0.1%
7 United Kingdom 3 0.1%
8 Malaysia 1 0%
9 Netherlands 1 0%
10 Portugal 1 0%
11 Canada 1 0%
12 France 1 0%