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 United States 62 37.6%
2 China 58 35.2%
3 Netherlands 18 10.9%
4 Germany 10 6.1%
5 Taiwan 6 3.6%
6 Hong Kong 4 2.4%
7 Czech Republic 1 0.6%
8 France 1 0.6%
9 Portugal 1 0.6%
10 Russia 1 0.6%
11 Sweden 1 0.6%
12 United Kingdom 1 0.6%
13 Canada 1 0.6%