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 134 46.7%
2 United States 64 22.3%
3 Germany 35 12.2%
4 Canada 23 8%
5 Singapore 9 3.1%
6 Viet Nam 4 1.4%
7 Italy 4 1.4%
8 Japan 3 1%
9 France 3 1%
10 Sweden 3 1%
11 Australia 2 0.7%
12 Netherlands 1 0.3%
13 Russia 1 0.3%
14 Taiwan 1 0.3%