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 37 43.5%
2 United States 28 32.9%
3 Germany 7 8.2%
4 Hong Kong 5 5.9%
5 Taiwan 2 2.4%
6 Australia 1 1.2%
7 Canada 1 1.2%
8 Netherlands 1 1.2%
9 Portugal 1 1.2%
10 Russia 1 1.2%
11 Sweden 1 1.2%