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 77 40.7%
2 United States 65 34.4%
3 Taiwan 16 8.5%
4 Germany 15 7.9%
5 Hong Kong 5 2.6%
6 Canada 4 2.1%
7 Norway 2 1.1%
8 Portugal 1 0.5%
9 Russia 1 0.5%
10 Sweden 1 0.5%
11 Korea, Republic of 1 0.5%
12 Brazil 1 0.5%