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 130 65.7%
2 United States 34 17.2%
3 Germany 15 7.6%
4 Canada 5 2.5%
5 Hong Kong 4 2%
6 Malaysia 2 1%
7 United Kingdom 2 1%
8 Portugal 1 0.5%
9 Singapore 1 0.5%
10 Sweden 1 0.5%
11 Taiwan 1 0.5%
12 Australia 1 0.5%
13 Czech Republic 1 0.5%