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 34 37.8%
2 Canada 17 18.9%
3 China 14 15.6%
4 Korea, Republic of 12 13.3%
5 Netherlands 5 5.6%
6 Hong Kong 3 3.3%
7 France 2 2.2%
8 New Zealand 1 1.1%
9 Russia 1 1.1%
10 Singapore 1 1.1%