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 177 63.4%
2 United States 45 16.1%
3 Germany 38 13.6%
4 Taiwan 5 1.8%
5 Sweden 4 1.4%
6 United Kingdom 3 1.1%
7 Hong Kong 2 0.7%
8 Japan 2 0.7%
9 Moldova, Republic of 2 0.7%
10 Australia 1 0.4%