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 76 49%
2 United States 48 31%
3 Germany 7 4.5%
4 Hong Kong 7 4.5%
5 Netherlands 7 4.5%
6 Korea, Republic of 3 1.9%
7 Taiwan 2 1.3%
8 United Kingdom 2 1.3%
9 Portugal 1 0.6%
10 Romania 1 0.6%
11 Sweden 1 0.6%