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 39 44.3%
2 China 24 27.3%
3 Netherlands 11 12.5%
4 Hong Kong 4 4.5%
5 Japan 2 2.3%
6 Korea, Republic of 2 2.3%
7 Germany 2 2.3%
8 Russia 2 2.3%
9 Brazil 1 1.1%
10 New Zealand 1 1.1%