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 117 70.1%
2 United States 29 17.4%
3 Germany 6 3.6%
4 Hong Kong 5 3%
5 Taiwan 5 3%
6 United Kingdom 1 0.6%
7 Canada 1 0.6%
8 Netherlands 1 0.6%
9 Portugal 1 0.6%
10 Russia 1 0.6%