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 82 41.4%
2 China 67 33.8%
3 Netherlands 17 8.6%
4 Hong Kong 10 5.1%
5 Germany 6 3%
6 Taiwan 4 2%
7 Switzerland 3 1.5%
8 United Kingdom 3 1.5%
9 Japan 2 1%
10 Portugal 1 0.5%
11 Russia 1 0.5%
12 Singapore 1 0.5%
13 Ukraine 1 0.5%