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 China 43 46.7%
2 Germany 9 9.8%
3 Hong Kong 7 7.6%
4 United States 7 7.6%
5 Taiwan 5 5.4%
6 Canada 4 4.3%
7 Malaysia 4 4.3%
8 Netherlands 4 4.3%
9 Singapore 3 3.3%
10 United Kingdom 2 2.2%
11 Mexico 2 2.2%
12 Russia 1 1.1%
13 Japan 1 1.1%