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 23 33.3%
2 United States 23 33.3%
3 Germany 11 15.9%
4 Hong Kong 5 7.2%
5 Taiwan 2 2.9%
6 United Kingdom 1 1.4%
7 France 1 1.4%
8 Korea, Republic of 1 1.4%
9 Portugal 1 1.4%
10 Russia 1 1.4%