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 172 57.3%
2 United States 59 19.7%
3 Germany 50 16.7%
4 India 3 1%
5 Macao 3 1%
6 Netherlands 3 1%
7 Poland 2 0.7%
8 France 2 0.7%
9 Singapore 2 0.7%
10 Italy 1 0.3%
11 Brazil 1 0.3%
12 Canada 1 0.3%
13 Russia 1 0.3%