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 226 59.5%
2 United States 84 22.1%
3 Germany 35 9.2%
4 Canada 14 3.7%
5 Macao 4 1.1%
6 Ukraine 3 0.8%
7 Russia 3 0.8%
8 Singapore 2 0.5%
9 Netherlands 2 0.5%
10 Brazil 2 0.5%
11 Hungary 2 0.5%
12 Italy 2 0.5%
13 Japan 1 0.3%