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 82 60.3%
2 United States 18 13.2%
3 France 8 5.9%
4 Taiwan 6 4.4%
5 Norway 5 3.7%
6 Germany 4 2.9%
7 Canada 3 2.2%
8 Netherlands 3 2.2%
9 Singapore 3 2.2%
10 Malaysia 2 1.5%
11 Russia 1 0.7%
12 United Kingdom 1 0.7%