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 167 70.2%
2 United States 36 15.1%
3 Hong Kong 15 6.3%
4 Germany 9 3.8%
5 Japan 2 0.8%
6 Switzerland 2 0.8%
7 Canada 2 0.8%
8 1 0.4%
9 Czech Republic 1 0.4%
10 Taiwan 1 0.4%
11 United Kingdom 1 0.4%
12 Portugal 1 0.4%