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 23 29.1%
2 China 19 24.1%
3 Netherlands 16 20.3%
4 Germany 6 7.6%
5 Ghana 2 2.5%
6 New Zealand 2 2.5%
7 France 2 2.5%
8 Viet Nam 2 2.5%
9 Thailand 2 2.5%
10 Canada 1 1.3%
11 Sweden 1 1.3%
12 Hong Kong 1 1.3%
13 Japan 1 1.3%
14 Malaysia 1 1.3%