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 United States 42 31.6%
2 China 40 30.1%
3 Germany 17 12.8%
4 Canada 12 9%
5 Hong Kong 6 4.5%
6 Taiwan 3 2.3%
7 Singapore 2 1.5%
8 United Kingdom 2 1.5%
9 Macao 2 1.5%
10 Malaysia 2 1.5%
11 Portugal 1 0.8%
12 Australia 1 0.8%
13 Hungary 1 0.8%
14 Korea, Republic of 1 0.8%
15 Ukraine 1 0.8%