BPG致力于知识的发现和传播
Total Visits of This Article
2021 | 总访问次数
排名 国家/地区 数量 占比
1 United States 47 50.5%
2 China 19 20.4%
3 Canada 5 5.4%
4 Japan 5 5.4%
5 Hong Kong 4 4.3%
6 Russia 3 3.2%
7 Singapore 3 3.2%
8 Egypt 2 2.2%
9 Poland 2 2.2%
10 Germany 1 1.1%
11 Taiwan 1 1.1%
12 Netherlands 1 1.1%