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 44 58.7%
2 United States 16 21.3%
3 Taiwan 4 5.3%
4 Germany 3 4%
5 Hong Kong 3 4%
6 Netherlands 1 1.3%
7 Portugal 1 1.3%
8 Singapore 1 1.3%
9 United Kingdom 1 1.3%
10 France 1 1.3%