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 78 53.4%
2 United States 28 19.2%
3 Germany 12 8.2%
4 Hong Kong 10 6.8%
5 Taiwan 5 3.4%
6 Canada 4 2.7%
7 Malaysia 3 2.1%
8 Singapore 2 1.4%
9 Sweden 1 0.7%
10 Portugal 1 0.7%
11 Australia 1 0.7%
12 Czech Republic 1 0.7%