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 244 54.2%
2 United States 92 20.4%
3 Canada 34 7.6%
4 Germany 33 7.3%
5 Hong Kong 14 3.1%
6 Netherlands 12 2.7%
7 Sweden 10 2.2%
8 Japan 4 0.9%
9 Brazil 2 0.4%
10 Taiwan 2 0.4%
11 Turkey 1 0.2%
12 France 1 0.2%
13 Slovenia 1 0.2%