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 315 78.4%
2 United States 31 7.7%
3 Germany 29 7.2%
4 Canada 4 1%
5 Taiwan 4 1%
6 Russia 3 0.7%
7 Singapore 2 0.5%
8 Sweden 2 0.5%
9 Australia 2 0.5%
10 Netherlands 2 0.5%
11 Norway 2 0.5%
12 Japan 2 0.5%
13 Kazakhstan 2 0.5%
14 Mauritius 1 0.2%
15 Viet Nam 1 0.2%