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 68 48.6%
2 United States 31 22.1%
3 Germany 18 12.9%
4 Hong Kong 6 4.3%
5 Canada 5 3.6%
6 Taiwan 4 2.9%
7 Ukraine 1 0.7%
8 United Kingdom 1 0.7%
9 Australia 1 0.7%
10 Estonia 1 0.7%
11 France 1 0.7%
12 Malaysia 1 0.7%
13 Portugal 1 0.7%
14 Sweden 1 0.7%