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 70 50.4%
2 United States 18 12.9%
3 Germany 16 11.5%
4 Netherlands 8 5.8%
5 Taiwan 6 4.3%
6 France 5 3.6%
7 Thailand 4 2.9%
8 Switzerland 4 2.9%
9 Canada 2 1.4%
10 Egypt 1 0.7%
11 Oman 1 0.7%
12 Philippines 1 0.7%
13 Hong Kong 1 0.7%
14 Japan 1 0.7%
15 United Kingdom 1 0.7%