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 105 56.8%
2 United States 44 23.8%
3 Germany 13 7%
4 Taiwan 6 3.2%
5 Hong Kong 4 2.2%
6 Norway 2 1.1%
7 Japan 2 1.1%
8 2 1.1%
9 Mexico 1 0.5%
10 Ukraine 1 0.5%
11 United Kingdom 1 0.5%
12 Portugal 1 0.5%
13 Russia 1 0.5%
14 Sweden 1 0.5%
15 Italy 1 0.5%