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 174 64.4%
2 United States 38 14.1%
3 Germany 34 12.6%
4 Hong Kong 11 4.1%
5 Taiwan 3 1.1%
6 United Kingdom 2 0.7%
7 Japan 2 0.7%
8 Moldova, Republic of 2 0.7%
9 Netherlands 2 0.7%
10 Switzerland 1 0.4%
11 Brazil 1 0.4%