BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 China 45 44.1%
2 Germany 20 19.6%
3 United States 19 18.6%
4 Canada 4 3.9%
5 Hong Kong 3 2.9%
6 Taiwan 3 2.9%
7 Iran, Islamic Republic of 2 2%
8 Netherlands 1 1%
9 Portugal 1 1%
10 Russia 1 1%
11 United Kingdom 1 1%
12 Finland 1 1%
13 France 1 1%