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 126 71.2%
2 United States 29 16.4%
3 Germany 10 5.6%
4 Hong Kong 2 1.1%
5 Netherlands 2 1.1%
6 United Kingdom 2 1.1%
7 Brazil 2 1.1%
8 Canada 2 1.1%
9 Russia 1 0.6%
10 Singapore 1 0.6%