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 31 34.8%
2 United States 26 29.2%
3 Germany 15 16.9%
4 Hong Kong 5 5.6%
5 Taiwan 3 3.4%
6 Canada 2 2.2%
7 Norway 2 2.2%
8 Portugal 1 1.1%
9 Russia 1 1.1%
10 Sweden 1 1.1%
11 Netherlands 1 1.1%
12 France 1 1.1%