BPG致力于知识的发现和传播
Total Visits of This Article
2021 | 总访问次数
排名 国家/地区 数量 占比
1 China 158 64.8%
2 United States 39 16%
3 Germany 26 10.7%
4 Singapore 5 2%
5 Taiwan 4 1.6%
6 Hong Kong 3 1.2%
7 Canada 3 1.2%
8 Norway 2 0.8%
9 Poland 2 0.8%
10 United Kingdom 1 0.4%
11 Netherlands 1 0.4%