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 37 37%
2 China 24 24%
3 Netherlands 12 12%
4 Canada 8 8%
5 Hong Kong 4 4%
6 Sweden 4 4%
7 Germany 3 3%
8 Korea, Republic of 2 2%
9 Malaysia 2 2%
10 Russia 1 1%
11 Singapore 1 1%
12 Cambodia 1 1%
13 Taiwan 1 1%