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 112 60.5%
2 United States 27 14.6%
3 Germany 11 5.9%
4 Canada 8 4.3%
5 United Kingdom 8 4.3%
6 Hong Kong 5 2.7%
7 Taiwan 4 2.2%
8 Norway 2 1.1%
9 Sweden 2 1.1%
10 Portugal 1 0.5%
11 Ukraine 1 0.5%
12 Japan 1 0.5%
13 New Zealand 1 0.5%
14 Australia 1 0.5%
15 France 1 0.5%