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 35 49.3%
2 Germany 8 11.3%
3 United States 8 11.3%
4 Singapore 4 5.6%
5 Taiwan 3 4.2%
6 Canada 3 4.2%
7 Japan 3 4.2%
8 Netherlands 3 4.2%
9 Peru 2 2.8%
10 Bulgaria 1 1.4%
11 United Kingdom 1 1.4%