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 32 42.7%
2 China 27 36%
3 Germany 7 9.3%
4 Hong Kong 3 4%
5 New Zealand 2 2.7%
6 Portugal 1 1.3%
7 Sweden 1 1.3%
8 United Kingdom 1 1.3%
9 France 1 1.3%