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 170 58.6%
2 United States 53 18.3%
3 Germany 30 10.3%
4 Canada 20 6.9%
5 Thailand 5 1.7%
6 Netherlands 3 1%
7 Portugal 2 0.7%
8 Sweden 2 0.7%
9 Brazil 2 0.7%
10 Hong Kong 2 0.7%
11 New Zealand 1 0.3%