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 186 47.8%
2 United States 126 32.4%
3 Germany 52 13.4%
4 Malaysia 6 1.5%
5 Switzerland 3 0.8%
6 Taiwan 2 0.5%
7 United Kingdom 2 0.5%
8 Senegal 2 0.5%
9 Finland 2 0.5%
10 Hong Kong 2 0.5%
11 Iraq 2 0.5%
12 Israel 1 0.3%
13 Japan 1 0.3%
14 Macao 1 0.3%
15 Netherlands 1 0.3%